Finding the Fourth Proportional to 3,665.28, 5,481.72 and 3,257.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.28 : 5,481.72 = 3,257.04 : x
2. Step 2: Convert to fraction form
   3,665.28/5,481.72 = 3,257.04/x
3. Step 3: Cross multiply
   3,665.28x = 5,481.72 × 3,257.04
4. Step 4: Simplify right side
   3,665.28x = 17,854,181.31
5. Step 5: Solve for x
   x = 17,854,181.31/3,665.28
6. Step 6: Final answer
   x = 4,871.16