Finding the Fourth Proportional to 789,839.88, 1,088,845.38 and 563,091.72

Step by Step Solution

1. Step 1: Write the proportion equation
   789,839.88 : 1,088,845.38 = 563,091.72 : x
2. Step 2: Convert to fraction form
   789,839.88/1,088,845.38 = 563,091.72/x
3. Step 3: Cross multiply
   789,839.88x = 1,088,845.38 × 563,091.72
4. Step 4: Simplify right side
   789,839.88x = 613,119,817,838.25
5. Step 5: Solve for x
   x = 613,119,817,838.25/789,839.88
6. Step 6: Final answer
   x = 776,258.37