Finding the Fourth Proportional to 3,976.54, 5,487.86 and 2,208.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.54 : 5,487.86 = 2,208.16 : x
2. Step 2: Convert to fraction form
   3,976.54/5,487.86 = 2,208.16/x
3. Step 3: Cross multiply
   3,976.54x = 5,487.86 × 2,208.16
4. Step 4: Simplify right side
   3,976.54x = 12,118,072.94
5. Step 5: Solve for x
   x = 12,118,072.94/3,976.54
6. Step 6: Final answer
   x = 3,047.39