Finding the Fourth Proportional to 1,862.37, 2,569.42 and 1,116.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,862.37 : 2,569.42 = 1,116.57 : x
2. Step 2: Convert to fraction form
   1,862.37/2,569.42 = 1,116.57/x
3. Step 3: Cross multiply
   1,862.37x = 2,569.42 × 1,116.57
4. Step 4: Simplify right side
   1,862.37x = 2,868,937.29
5. Step 5: Solve for x
   x = 2,868,937.29/1,862.37
6. Step 6: Final answer
   x = 1,540.48