Finding the Fourth Proportional to 3,984.56, 5,499 and 2,216.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.56 : 5,499 = 2,216.48 : x
2. Step 2: Convert to fraction form
   3,984.56/5,499 = 2,216.48/x
3. Step 3: Cross multiply
   3,984.56x = 5,499 × 2,216.48
4. Step 4: Simplify right side
   3,984.56x = 12,188,423.52
5. Step 5: Solve for x
   x = 12,188,423.52/3,984.56
6. Step 6: Final answer
   x = 3,058.91