Finding the Fourth Proportional to 2,612.42, 3,918.85 and 968.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.42 : 3,918.85 = 968.98 : x
2. Step 2: Convert to fraction form
   2,612.42/3,918.85 = 968.98/x
3. Step 3: Cross multiply
   2,612.42x = 3,918.85 × 968.98
4. Step 4: Simplify right side
   2,612.42x = 3,797,287.27
5. Step 5: Solve for x
   x = 3,797,287.27/2,612.42
6. Step 6: Final answer
   x = 1,453.55