Finding the Fourth Proportional to 1,111.84, 1,540.92 and 1,095.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.84 : 1,540.92 = 1,095.20 : x
2. Step 2: Convert to fraction form
   1,111.84/1,540.92 = 1,095.20/x
3. Step 3: Cross multiply
   1,111.84x = 1,540.92 × 1,095.20
4. Step 4: Simplify right side
   1,111.84x = 1,687,615.58
5. Step 5: Solve for x
   x = 1,687,615.58/1,111.84
6. Step 6: Final answer
   x = 1,517.86