Finding the Fourth Proportional to 1,215,040.71, 1,676,686.69 and 725,562.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,040.71 : 1,676,686.69 = 725,562.55 : x
2. Step 2: Convert to fraction form
   1,215,040.71/1,676,686.69 = 725,562.55/x
3. Step 3: Cross multiply
   1,215,040.71x = 1,676,686.69 × 725,562.55
4. Step 4: Simplify right side
   1,215,040.71x = 1,216,541,070,347.46
5. Step 5: Solve for x
   x = 1,216,541,070,347.46/1,215,040.71
6. Step 6: Final answer
   x = 1,001,234.82