Finding the Fourth Proportional to 1,017.25, 1,403.81 and 597.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.25 : 1,403.81 = 597.61 : x
2. Step 2: Convert to fraction form
   1,017.25/1,403.81 = 597.61/x
3. Step 3: Cross multiply
   1,017.25x = 1,403.81 × 597.61
4. Step 4: Simplify right side
   1,017.25x = 838,930.89
5. Step 5: Solve for x
   x = 838,930.89/1,017.25
6. Step 6: Final answer
   x = 824.70