Finding the Fourth Proportional to 1,040.71, 1,436.31 and 791.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.71 : 1,436.31 = 791.62 : x
2. Step 2: Convert to fraction form
   1,040.71/1,436.31 = 791.62/x
3. Step 3: Cross multiply
   1,040.71x = 1,436.31 × 791.62
4. Step 4: Simplify right side
   1,040.71x = 1,137,011.72
5. Step 5: Solve for x
   x = 1,137,011.72/1,040.71
6. Step 6: Final answer
   x = 1,092.53