Finding the Fourth Proportional to 1,200,366.09, 1,656,481.98 and 656,500.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,366.09 : 1,656,481.98 = 656,500.23 : x
2. Step 2: Convert to fraction form
   1,200,366.09/1,656,481.98 = 656,500.23/x
3. Step 3: Cross multiply
   1,200,366.09x = 1,656,481.98 × 656,500.23
4. Step 4: Simplify right side
   1,200,366.09x = 1,087,480,800,860.86
5. Step 5: Solve for x
   x = 1,087,480,800,860.86/1,200,366.09
6. Step 6: Final answer
   x = 905,957.62