Finding the Fourth Proportional to 1,040.38, 1,435.86 and 598.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.38 : 1,435.86 = 598.42 : x
2. Step 2: Convert to fraction form
   1,040.38/1,435.86 = 598.42/x
3. Step 3: Cross multiply
   1,040.38x = 1,435.86 × 598.42
4. Step 4: Simplify right side
   1,040.38x = 859,249.14
5. Step 5: Solve for x
   x = 859,249.14/1,040.38
6. Step 6: Final answer
   x = 825.90