Finding the Fourth Proportional to 3,984.58, 5,498.06 and 2,216.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.58 : 5,498.06 = 2,216.14 : x
2. Step 2: Convert to fraction form
   3,984.58/5,498.06 = 2,216.14/x
3. Step 3: Cross multiply
   3,984.58x = 5,498.06 × 2,216.14
4. Step 4: Simplify right side
   3,984.58x = 12,184,470.69
5. Step 5: Solve for x
   x = 12,184,470.69/3,984.58
6. Step 6: Final answer
   x = 3,057.91