Finding the Fourth Proportional to 789,809.88, 1,088,803.98 and 563,061.72

Step by Step Solution

1. Step 1: Write the proportion equation
   789,809.88 : 1,088,803.98 = 563,061.72 : x
2. Step 2: Convert to fraction form
   789,809.88/1,088,803.98 = 563,061.72/x
3. Step 3: Cross multiply
   789,809.88x = 1,088,803.98 × 563,061.72
4. Step 4: Simplify right side
   789,809.88x = 613,063,841,721.65
5. Step 5: Solve for x
   x = 613,063,841,721.65/789,809.88
6. Step 6: Final answer
   x = 776,216.98