Finding the Fourth Proportional to 2,208.72, 3,312.91 and 976.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.72 : 3,312.91 = 976.17 : x
2. Step 2: Convert to fraction form
   2,208.72/3,312.91 = 976.17/x
3. Step 3: Cross multiply
   2,208.72x = 3,312.91 × 976.17
4. Step 4: Simplify right side
   2,208.72x = 3,233,963.35
5. Step 5: Solve for x
   x = 3,233,963.35/2,208.72
6. Step 6: Final answer
   x = 1,464.18