Finding the Fourth Proportional to 2,591,635.76, 3,887,425.56 and 885,762.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591,635.76 : 3,887,425.56 = 885,762.80 : x
2. Step 2: Convert to fraction form
   2,591,635.76/3,887,425.56 = 885,762.80/x
3. Step 3: Cross multiply
   2,591,635.76x = 3,887,425.56 × 885,762.80
4. Step 4: Simplify right side
   2,591,635.76x = 3,443,336,948,817.17
5. Step 5: Solve for x
   x = 3,443,336,948,817.17/2,591,635.76
6. Step 6: Final answer
   x = 1,328,634.60