Finding the Fourth Proportional to 2,571.78, 3,854.42 and 2,225.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571.78 : 3,854.42 = 2,225.10 : x
2. Step 2: Convert to fraction form
   2,571.78/3,854.42 = 2,225.10/x
3. Step 3: Cross multiply
   2,571.78x = 3,854.42 × 2,225.10
4. Step 4: Simplify right side
   2,571.78x = 8,576,469.94
5. Step 5: Solve for x
   x = 8,576,469.94/2,571.78
6. Step 6: Final answer
   x = 3,334.84