Finding the Fourth Proportional to 3,976.91, 5,487.98 and 2,208.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.91 : 5,487.98 = 2,208.62 : x
2. Step 2: Convert to fraction form
   3,976.91/5,487.98 = 2,208.62/x
3. Step 3: Cross multiply
   3,976.91x = 5,487.98 × 2,208.62
4. Step 4: Simplify right side
   3,976.91x = 12,120,865.06
5. Step 5: Solve for x
   x = 12,120,865.06/3,976.91
6. Step 6: Final answer
   x = 3,047.81