Finding the Fourth Proportional to 2,610.55, 3,915.29 and 966.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.55 : 3,915.29 = 966.71 : x
2. Step 2: Convert to fraction form
   2,610.55/3,915.29 = 966.71/x
3. Step 3: Cross multiply
   2,610.55x = 3,915.29 × 966.71
4. Step 4: Simplify right side
   2,610.55x = 3,784,929.21
5. Step 5: Solve for x
   x = 3,784,929.21/2,610.55
6. Step 6: Final answer
   x = 1,449.86