Finding the Fourth Proportional to 3,966.50, 5,473.71 and 2,198.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,966.50 : 5,473.71 = 2,198.21 : x
2. Step 2: Convert to fraction form
   3,966.50/5,473.71 = 2,198.21/x
3. Step 3: Cross multiply
   3,966.50x = 5,473.71 × 2,198.21
4. Step 4: Simplify right side
   3,966.50x = 12,032,336.69
5. Step 5: Solve for x
   x = 12,032,336.69/3,966.50
6. Step 6: Final answer
   x = 3,033.49