Finding the Fourth Proportional to 3,984.83, 5,499.48 and 2,216.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.83 : 5,499.48 = 2,216.87 : x
2. Step 2: Convert to fraction form
   3,984.83/5,499.48 = 2,216.87/x
3. Step 3: Cross multiply
   3,984.83x = 5,499.48 × 2,216.87
4. Step 4: Simplify right side
   3,984.83x = 12,191,621.14
5. Step 5: Solve for x
   x = 12,191,621.14/3,984.83
6. Step 6: Final answer
   x = 3,059.51