Finding the Fourth Proportional to 3,966.82, 5,474.12 and 2,198.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,966.82 : 5,474.12 = 2,198.42 : x
2. Step 2: Convert to fraction form
   3,966.82/5,474.12 = 2,198.42/x
3. Step 3: Cross multiply
   3,966.82x = 5,474.12 × 2,198.42
4. Step 4: Simplify right side
   3,966.82x = 12,034,414.89
5. Step 5: Solve for x
   x = 12,034,414.89/3,966.82
6. Step 6: Final answer
   x = 3,033.77