Finding the Fourth Proportional to 2,612.88, 3,916.78 and 968.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.88 : 3,916.78 = 968.96 : x
2. Step 2: Convert to fraction form
   2,612.88/3,916.78 = 968.96/x
3. Step 3: Cross multiply
   2,612.88x = 3,916.78 × 968.96
4. Step 4: Simplify right side
   2,612.88x = 3,795,203.15
5. Step 5: Solve for x
   x = 3,795,203.15/2,612.88
6. Step 6: Final answer
   x = 1,452.50