Finding the Fourth Proportional to 1,014.37, 1,399.89 and 572.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.37 : 1,399.89 = 572.29 : x
2. Step 2: Convert to fraction form
   1,014.37/1,399.89 = 572.29/x
3. Step 3: Cross multiply
   1,014.37x = 1,399.89 × 572.29
4. Step 4: Simplify right side
   1,014.37x = 801,139.55
5. Step 5: Solve for x
   x = 801,139.55/1,014.37
6. Step 6: Final answer
   x = 789.79