Finding the Fourth Proportional to 1,040.27, 1,435.54 and 598.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.27 : 1,435.54 = 598.15 : x
2. Step 2: Convert to fraction form
   1,040.27/1,435.54 = 598.15/x
3. Step 3: Cross multiply
   1,040.27x = 1,435.54 × 598.15
4. Step 4: Simplify right side
   1,040.27x = 858,658.08
5. Step 5: Solve for x
   x = 858,658.08/1,040.27
6. Step 6: Final answer
   x = 825.42