Finding the Fourth Proportional to 3,985.02, 5,499.25 and 2,216.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.02 : 5,499.25 = 2,216.59 : x
2. Step 2: Convert to fraction form
   3,985.02/5,499.25 = 2,216.59/x
3. Step 3: Cross multiply
   3,985.02x = 5,499.25 × 2,216.59
4. Step 4: Simplify right side
   3,985.02x = 12,189,582.56
5. Step 5: Solve for x
   x = 12,189,582.56/3,985.02
6. Step 6: Final answer
   x = 3,058.85