Finding the Fourth Proportional to 1,014.55, 1,400.33 and 572.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.55 : 1,400.33 = 572.71 : x
2. Step 2: Convert to fraction form
   1,014.55/1,400.33 = 572.71/x
3. Step 3: Cross multiply
   1,014.55x = 1,400.33 × 572.71
4. Step 4: Simplify right side
   1,014.55x = 801,978.78
5. Step 5: Solve for x
   x = 801,978.78/1,014.55
6. Step 6: Final answer
   x = 790.48