Finding the Fourth Proportional to 3,976.98, 5,488.54 and 2,208.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.98 : 5,488.54 = 2,208.89 : x
2. Step 2: Convert to fraction form
   3,976.98/5,488.54 = 2,208.89/x
3. Step 3: Cross multiply
   3,976.98x = 5,488.54 × 2,208.89
4. Step 4: Simplify right side
   3,976.98x = 12,123,548.16
5. Step 5: Solve for x
   x = 12,123,548.16/3,976.98
6. Step 6: Final answer
   x = 3,048.43