Finding the Fourth Proportional to 2,612.27, 3,918.31 and 968.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.27 : 3,918.31 = 968.09 : x
2. Step 2: Convert to fraction form
   2,612.27/3,918.31 = 968.09/x
3. Step 3: Cross multiply
   2,612.27x = 3,918.31 × 968.09
4. Step 4: Simplify right side
   2,612.27x = 3,793,254.72
5. Step 5: Solve for x
   x = 3,793,254.72/2,612.27
6. Step 6: Final answer
   x = 1,452.09