Finding the Fourth Proportional to 2,718.42, 4,078.98 and 1,076.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,718.42 : 4,078.98 = 1,076.15 : x
2. Step 2: Convert to fraction form
   2,718.42/4,078.98 = 1,076.15/x
3. Step 3: Cross multiply
   2,718.42x = 4,078.98 × 1,076.15
4. Step 4: Simplify right side
   2,718.42x = 4,389,573.93
5. Step 5: Solve for x
   x = 4,389,573.93/2,718.42
6. Step 6: Final answer
   x = 1,614.75