Finding the Fourth Proportional to 2,657,168.34, 3,986,385.21 and 860,052.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657,168.34 : 3,986,385.21 = 860,052.12 : x
2. Step 2: Convert to fraction form
   2,657,168.34/3,986,385.21 = 860,052.12/x
3. Step 3: Cross multiply
   2,657,168.34x = 3,986,385.21 × 860,052.12
4. Step 4: Simplify right side
   2,657,168.34x = 3,428,499,050,997.15
5. Step 5: Solve for x
   x = 3,428,499,050,997.15/2,657,168.34
6. Step 6: Final answer
   x = 1,290,282.97