Finding the Fourth Proportional to 3,976.53, 5,487.86 and 2,208.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.53 : 5,487.86 = 2,208.17 : x
2. Step 2: Convert to fraction form
   3,976.53/5,487.86 = 2,208.17/x
3. Step 3: Cross multiply
   3,976.53x = 5,487.86 × 2,208.17
4. Step 4: Simplify right side
   3,976.53x = 12,118,127.82
5. Step 5: Solve for x
   x = 12,118,127.82/3,976.53
6. Step 6: Final answer
   x = 3,047.41