Finding the Fourth Proportional to 3,851.66, 5,315.97 and 2,280.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,851.66 : 5,315.97 = 2,280.52 : x
2. Step 2: Convert to fraction form
   3,851.66/5,315.97 = 2,280.52/x
3. Step 3: Cross multiply
   3,851.66x = 5,315.97 × 2,280.52
4. Step 4: Simplify right side
   3,851.66x = 12,123,175.90
5. Step 5: Solve for x
   x = 12,123,175.90/3,851.66
6. Step 6: Final answer
   x = 3,147.52