Finding the Fourth Proportional to 1,031.48, 1,423.42 and 589.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.48 : 1,423.42 = 589.37 : x
2. Step 2: Convert to fraction form
   1,031.48/1,423.42 = 589.37/x
3. Step 3: Cross multiply
   1,031.48x = 1,423.42 × 589.37
4. Step 4: Simplify right side
   1,031.48x = 838,920.00
5. Step 5: Solve for x
   x = 838,920.00/1,031.48
6. Step 6: Final answer
   x = 813.32