Finding the Fourth Proportional to 3,984.35, 5,498.91 and 2,216.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.35 : 5,498.91 = 2,216.53 : x
2. Step 2: Convert to fraction form
   3,984.35/5,498.91 = 2,216.53/x
3. Step 3: Cross multiply
   3,984.35x = 5,498.91 × 2,216.53
4. Step 4: Simplify right side
   3,984.35x = 12,188,498.98
5. Step 5: Solve for x
   x = 12,188,498.98/3,984.35
6. Step 6: Final answer
   x = 3,059.09