Finding the Fourth Proportional to 3,966.47, 5,473.89 and 2,198.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,966.47 : 5,473.89 = 2,198.06 : x
2. Step 2: Convert to fraction form
   3,966.47/5,473.89 = 2,198.06/x
3. Step 3: Cross multiply
   3,966.47x = 5,473.89 × 2,198.06
4. Step 4: Simplify right side
   3,966.47x = 12,031,952.34
5. Step 5: Solve for x
   x = 12,031,952.34/3,966.47
6. Step 6: Final answer
   x = 3,033.42