Finding the Fourth Proportional to 3,976.96, 5,488.16 and 2,208.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.96 : 5,488.16 = 2,208.88 : x
2. Step 2: Convert to fraction form
   3,976.96/5,488.16 = 2,208.88/x
3. Step 3: Cross multiply
   3,976.96x = 5,488.16 × 2,208.88
4. Step 4: Simplify right side
   3,976.96x = 12,122,686.86
5. Step 5: Solve for x
   x = 12,122,686.86/3,976.96
6. Step 6: Final answer
   x = 3,048.23