Finding the Fourth Proportional to 925,061.02, 1,387,569.90 and 426,425.02

Step by Step Solution

1. Step 1: Write the proportion equation
   925,061.02 : 1,387,569.90 = 426,425.02 : x
2. Step 2: Convert to fraction form
   925,061.02/1,387,569.90 = 426,425.02/x
3. Step 3: Cross multiply
   925,061.02x = 1,387,569.90 × 426,425.02
4. Step 4: Simplify right side
   925,061.02x = 591,694,522,358.90
5. Step 5: Solve for x
   x = 591,694,522,358.90/925,061.02
6. Step 6: Final answer
   x = 639,627.56