Finding the Fourth Proportional to 3,976.94, 5,488.18 and 2,208.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.94 : 5,488.18 = 2,208.55 : x
2. Step 2: Convert to fraction form
   3,976.94/5,488.18 = 2,208.55/x
3. Step 3: Cross multiply
   3,976.94x = 5,488.18 × 2,208.55
4. Step 4: Simplify right side
   3,976.94x = 12,120,919.94
5. Step 5: Solve for x
   x = 12,120,919.94/3,976.94
6. Step 6: Final answer
   x = 3,047.80