Finding the Fourth Proportional to 2,657,153.82, 3,986,363.42 and 860,037.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657,153.82 : 3,986,363.42 = 860,037.60 : x
2. Step 2: Convert to fraction form
   2,657,153.82/3,986,363.42 = 860,037.60/x
3. Step 3: Cross multiply
   2,657,153.82x = 3,986,363.42 × 860,037.60
4. Step 4: Simplify right side
   2,657,153.82x = 3,428,422,428,464.59
5. Step 5: Solve for x
   x = 3,428,422,428,464.59/2,657,153.82
6. Step 6: Final answer
   x = 1,290,261.18