Finding the Fourth Proportional to 1,014.45, 1,399.83 and 572.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.45 : 1,399.83 = 572.25 : x
2. Step 2: Convert to fraction form
   1,014.45/1,399.83 = 572.25/x
3. Step 3: Cross multiply
   1,014.45x = 1,399.83 × 572.25
4. Step 4: Simplify right side
   1,014.45x = 801,052.72
5. Step 5: Solve for x
   x = 801,052.72/1,014.45
6. Step 6: Final answer
   x = 789.64