Finding the Fourth Proportional to 1,031.13, 1,422.72 and 588.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.13 : 1,422.72 = 588.93 : x
2. Step 2: Convert to fraction form
   1,031.13/1,422.72 = 588.93/x
3. Step 3: Cross multiply
   1,031.13x = 1,422.72 × 588.93
4. Step 4: Simplify right side
   1,031.13x = 837,882.49
5. Step 5: Solve for x
   x = 837,882.49/1,031.13
6. Step 6: Final answer
   x = 812.59