Finding the Fourth Proportional to 3,984.56, 5,498.72 and 2,216.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.56 : 5,498.72 = 2,216.24 : x
2. Step 2: Convert to fraction form
   3,984.56/5,498.72 = 2,216.24/x
3. Step 3: Cross multiply
   3,984.56x = 5,498.72 × 2,216.24
4. Step 4: Simplify right side
   3,984.56x = 12,186,483.21
5. Step 5: Solve for x
   x = 12,186,483.21/3,984.56
6. Step 6: Final answer
   x = 3,058.43