Finding the Fourth Proportional to 1,014.67, 1,400.12 and 572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.67 : 1,400.12 = 572.50 : x
2. Step 2: Convert to fraction form
   1,014.67/1,400.12 = 572.50/x
3. Step 3: Cross multiply
   1,014.67x = 1,400.12 × 572.50
4. Step 4: Simplify right side
   1,014.67x = 801,561.86
5. Step 5: Solve for x
   x = 801,561.86/1,014.67
6. Step 6: Final answer
   x = 789.97