Finding the Fourth Proportional to 1,902.71, 2,625.72 and 1,116.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,902.71 : 2,625.72 = 1,116.61 : x
2. Step 2: Convert to fraction form
   1,902.71/2,625.72 = 1,116.61/x
3. Step 3: Cross multiply
   1,902.71x = 2,625.72 × 1,116.61
4. Step 4: Simplify right side
   1,902.71x = 2,931,892.08
5. Step 5: Solve for x
   x = 2,931,892.08/1,902.71
6. Step 6: Final answer
   x = 1,540.90