Finding the Fourth Proportional to 1,031.41, 1,423.31 and 589.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.41 : 1,423.31 = 589.38 : x
2. Step 2: Convert to fraction form
   1,031.41/1,423.31 = 589.38/x
3. Step 3: Cross multiply
   1,031.41x = 1,423.31 × 589.38
4. Step 4: Simplify right side
   1,031.41x = 838,870.45
5. Step 5: Solve for x
   x = 838,870.45/1,031.41
6. Step 6: Final answer
   x = 813.32