Finding the Fourth Proportional to 1,040.52, 1,435.92 and 574.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.52 : 1,435.92 = 574.80 : x
2. Step 2: Convert to fraction form
   1,040.52/1,435.92 = 574.80/x
3. Step 3: Cross multiply
   1,040.52x = 1,435.92 × 574.80
4. Step 4: Simplify right side
   1,040.52x = 825,366.82
5. Step 5: Solve for x
   x = 825,366.82/1,040.52
6. Step 6: Final answer
   x = 793.23