Finding the Fourth Proportional to 1,080.72, 1,614.18 and 934.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,080.72 : 1,614.18 = 934.92 : x
2. Step 2: Convert to fraction form
   1,080.72/1,614.18 = 934.92/x
3. Step 3: Cross multiply
   1,080.72x = 1,614.18 × 934.92
4. Step 4: Simplify right side
   1,080.72x = 1,509,129.17
5. Step 5: Solve for x
   x = 1,509,129.17/1,080.72
6. Step 6: Final answer
   x = 1,396.41