Finding the Fourth Proportional to 1,039.97, 1,435.25 and 598.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.97 : 1,435.25 = 598.02 : x
2. Step 2: Convert to fraction form
   1,039.97/1,435.25 = 598.02/x
3. Step 3: Cross multiply
   1,039.97x = 1,435.25 × 598.02
4. Step 4: Simplify right side
   1,039.97x = 858,300.95
5. Step 5: Solve for x
   x = 858,300.95/1,039.97
6. Step 6: Final answer
   x = 825.31