Finding the Fourth Proportional to 1,039.65, 1,434.71 and 597.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.65 : 1,434.71 = 597.63 : x
2. Step 2: Convert to fraction form
   1,039.65/1,434.71 = 597.63/x
3. Step 3: Cross multiply
   1,039.65x = 1,434.71 × 597.63
4. Step 4: Simplify right side
   1,039.65x = 857,429.32
5. Step 5: Solve for x
   x = 857,429.32/1,039.65
6. Step 6: Final answer
   x = 824.73