Finding the Fourth Proportional to 1,031.06, 1,422.83 and 588.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.06 : 1,422.83 = 588.87 : x
2. Step 2: Convert to fraction form
   1,031.06/1,422.83 = 588.87/x
3. Step 3: Cross multiply
   1,031.06x = 1,422.83 × 588.87
4. Step 4: Simplify right side
   1,031.06x = 837,863.37
5. Step 5: Solve for x
   x = 837,863.37/1,031.06
6. Step 6: Final answer
   x = 812.62