Finding the Fourth Proportional to 1,031.01, 1,422.91 and 588.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.01 : 1,422.91 = 588.98 : x
2. Step 2: Convert to fraction form
   1,031.01/1,422.91 = 588.98/x
3. Step 3: Cross multiply
   1,031.01x = 1,422.91 × 588.98
4. Step 4: Simplify right side
   1,031.01x = 838,065.53
5. Step 5: Solve for x
   x = 838,065.53/1,031.01
6. Step 6: Final answer
   x = 812.86