Finding the Fourth Proportional to 3,991.04, 5,507.59 and 2,198.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,991.04 : 5,507.59 = 2,198.49 : x
2. Step 2: Convert to fraction form
   3,991.04/5,507.59 = 2,198.49/x
3. Step 3: Cross multiply
   3,991.04x = 5,507.59 × 2,198.49
4. Step 4: Simplify right side
   3,991.04x = 12,108,359.51
5. Step 5: Solve for x
   x = 12,108,359.51/3,991.04
6. Step 6: Final answer
   x = 3,033.88