Finding the Fourth Proportional to 1,092.42, 1,508.15 and 756.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,092.42 : 1,508.15 = 756.81 : x
2. Step 2: Convert to fraction form
   1,092.42/1,508.15 = 756.81/x
3. Step 3: Cross multiply
   1,092.42x = 1,508.15 × 756.81
4. Step 4: Simplify right side
   1,092.42x = 1,141,384.89
5. Step 5: Solve for x
   x = 1,141,384.89/1,092.42
6. Step 6: Final answer
   x = 1,044.82