Finding the Fourth Proportional to 1,014.37, 1,399.80 and 572.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.37 : 1,399.80 = 572.25 : x
2. Step 2: Convert to fraction form
   1,014.37/1,399.80 = 572.25/x
3. Step 3: Cross multiply
   1,014.37x = 1,399.80 × 572.25
4. Step 4: Simplify right side
   1,014.37x = 801,028.55
5. Step 5: Solve for x
   x = 801,028.55/1,014.37
6. Step 6: Final answer
   x = 789.68