Finding the Fourth Proportional to 2,611.86, 3,917.36 and 968.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.86 : 3,917.36 = 968.02 : x
2. Step 2: Convert to fraction form
   2,611.86/3,917.36 = 968.02/x
3. Step 3: Cross multiply
   2,611.86x = 3,917.36 × 968.02
4. Step 4: Simplify right side
   2,611.86x = 3,792,082.83
5. Step 5: Solve for x
   x = 3,792,082.83/2,611.86
6. Step 6: Final answer
   x = 1,451.87