Finding the Fourth Proportional to 1,040.46, 1,435.83 and 574.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.46 : 1,435.83 = 574.71 : x
2. Step 2: Convert to fraction form
   1,040.46/1,435.83 = 574.71/x
3. Step 3: Cross multiply
   1,040.46x = 1,435.83 × 574.71
4. Step 4: Simplify right side
   1,040.46x = 825,185.86
5. Step 5: Solve for x
   x = 825,185.86/1,040.46
6. Step 6: Final answer
   x = 793.10