Finding the Fourth Proportional to 1,092.62, 1,507.82 and 672.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,092.62 : 1,507.82 = 672.71 : x
2. Step 2: Convert to fraction form
   1,092.62/1,507.82 = 672.71/x
3. Step 3: Cross multiply
   1,092.62x = 1,507.82 × 672.71
4. Step 4: Simplify right side
   1,092.62x = 1,014,314.69
5. Step 5: Solve for x
   x = 1,014,314.69/1,092.62
6. Step 6: Final answer
   x = 928.33