Finding the Fourth Proportional to 1,824.90, 2,517.90 and 1,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,824.90 : 2,517.90 = 1,116.72 : x
2. Step 2: Convert to fraction form
   1,824.90/2,517.90 = 1,116.72/x
3. Step 3: Cross multiply
   1,824.90x = 2,517.90 × 1,116.72
4. Step 4: Simplify right side
   1,824.90x = 2,811,789.29
5. Step 5: Solve for x
   x = 2,811,789.29/1,824.90
6. Step 6: Final answer
   x = 1,540.79