Finding the Fourth Proportional to 1,039.59, 1,434.62 and 597.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.59 : 1,434.62 = 597.59 : x
2. Step 2: Convert to fraction form
   1,039.59/1,434.62 = 597.59/x
3. Step 3: Cross multiply
   1,039.59x = 1,434.62 × 597.59
4. Step 4: Simplify right side
   1,039.59x = 857,314.57
5. Step 5: Solve for x
   x = 857,314.57/1,039.59
6. Step 6: Final answer
   x = 824.67