Finding the Fourth Proportional to 1,040.47, 1,435.90 and 598.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.47 : 1,435.90 = 598.37 : x
2. Step 2: Convert to fraction form
   1,040.47/1,435.90 = 598.37/x
3. Step 3: Cross multiply
   1,040.47x = 1,435.90 × 598.37
4. Step 4: Simplify right side
   1,040.47x = 859,204.38
5. Step 5: Solve for x
   x = 859,204.38/1,040.47
6. Step 6: Final answer
   x = 825.78