Finding the Fourth Proportional to 1,086.62, 1,499.74 and 791.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.62 : 1,499.74 = 791.52 : x
2. Step 2: Convert to fraction form
   1,086.62/1,499.74 = 791.52/x
3. Step 3: Cross multiply
   1,086.62x = 1,499.74 × 791.52
4. Step 4: Simplify right side
   1,086.62x = 1,187,074.20
5. Step 5: Solve for x
   x = 1,187,074.20/1,086.62
6. Step 6: Final answer
   x = 1,092.45