Finding the Fourth Proportional to 2,587,132.62, 3,880,938.78 and 880,702.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587,132.62 : 3,880,938.78 = 880,702.61 : x
2. Step 2: Convert to fraction form
   2,587,132.62/3,880,938.78 = 880,702.61/x
3. Step 3: Cross multiply
   2,587,132.62x = 3,880,938.78 × 880,702.61
4. Step 4: Simplify right side
   2,587,132.62x = 3,417,952,893,391.52
5. Step 5: Solve for x
   x = 3,417,952,893,391.52/2,587,132.62
6. Step 6: Final answer
   x = 1,321,135.56