Finding the Fourth Proportional to 1,052.88, 1,452.76 and 610.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,052.88 : 1,452.76 = 610.72 : x
2. Step 2: Convert to fraction form
   1,052.88/1,452.76 = 610.72/x
3. Step 3: Cross multiply
   1,052.88x = 1,452.76 × 610.72
4. Step 4: Simplify right side
   1,052.88x = 887,229.59
5. Step 5: Solve for x
   x = 887,229.59/1,052.88
6. Step 6: Final answer
   x = 842.67