If you're playing through the main campaign this one should come naturally due to the amount of hospitals, no need to go out of your way for it.
Your organisation Value is the total value across your hospitals, made up from 4 factors:
Cash - the amount of cash you have (either positive or negative)
Profit Factor - a value based on wether your hospital is assumed to making a profit (either positive or negative)
Physical Assets - the value of all items and machines placed in your hospital (always positive)
Outstanding Loans - the value of the loans you took (always negative)
On the map you can scroll around to see the values for each of your hospitals. When playing in one of your hospitals, the hospital value is displayed on your 'Finance' page in the overview.
A general tip to help profitability in your hospitals is to get your prices right. You can change the prices of treatments and diagnosis in the finance screens. A practice that I found effective was to lower the price of diagnosis ( -20% to -50%), and up the price of treatments (to around +50%). This keeps your patients happy as they have had a good deal on diagnosis, making them happier and therefore more likely to pay the higher price for treatments. You may get the occasional patients refusing to pay but most should and your profitability will increase.