Finding the Fourth Proportional to 1,031.34, 1,423.32 and 589.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.34 : 1,423.32 = 589.25 : x
2. Step 2: Convert to fraction form
   1,031.34/1,423.32 = 589.25/x
3. Step 3: Cross multiply
   1,031.34x = 1,423.32 × 589.25
4. Step 4: Simplify right side
   1,031.34x = 838,691.31
5. Step 5: Solve for x
   x = 838,691.31/1,031.34
6. Step 6: Final answer
   x = 813.21