Finding the Fourth Proportional to 3,985.32, 5,499.93 and 2,216.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.32 : 5,499.93 = 2,216.93 : x
2. Step 2: Convert to fraction form
   3,985.32/5,499.93 = 2,216.93/x
3. Step 3: Cross multiply
   3,985.32x = 5,499.93 × 2,216.93
4. Step 4: Simplify right side
   3,985.32x = 12,192,932.32
5. Step 5: Solve for x
   x = 12,192,932.32/3,985.32
6. Step 6: Final answer
   x = 3,059.46