Finding the Fourth Proportional to 3,966.63, 5,473.98 and 2,198.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,966.63 : 5,473.98 = 2,198.22 : x
2. Step 2: Convert to fraction form
   3,966.63/5,473.98 = 2,198.22/x
3. Step 3: Cross multiply
   3,966.63x = 5,473.98 × 2,198.22
4. Step 4: Simplify right side
   3,966.63x = 12,033,012.32
5. Step 5: Solve for x
   x = 12,033,012.32/3,966.63
6. Step 6: Final answer
   x = 3,033.56