Finding the Fourth Proportional to 2,155,130.98, 3,231,759.56 and 617,787.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,130.98 : 3,231,759.56 = 617,787.83 : x
2. Step 2: Convert to fraction form
   2,155,130.98/3,231,759.56 = 617,787.83/x
3. Step 3: Cross multiply
   2,155,130.98x = 3,231,759.56 × 617,787.83
4. Step 4: Simplify right side
   2,155,130.98x = 1,996,541,730,644.61
5. Step 5: Solve for x
   x = 1,996,541,730,644.61/2,155,130.98
6. Step 6: Final answer
   x = 926,413.17