Finding the Fourth Proportional to 3,964.82, 5,469.88 and 2,548.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.82 : 5,469.88 = 2,548.30 : x
2. Step 2: Convert to fraction form
   3,964.82/5,469.88 = 2,548.30/x
3. Step 3: Cross multiply
   3,964.82x = 5,469.88 × 2,548.30
4. Step 4: Simplify right side
   3,964.82x = 13,938,895.20
5. Step 5: Solve for x
   x = 13,938,895.20/3,964.82
6. Step 6: Final answer
   x = 3,515.64