Finding the Fourth Proportional to 2,738.53, 4,104.78 and 1,276.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.53 : 4,104.78 = 1,276.48 : x
2. Step 2: Convert to fraction form
   2,738.53/4,104.78 = 1,276.48/x
3. Step 3: Cross multiply
   2,738.53x = 4,104.78 × 1,276.48
4. Step 4: Simplify right side
   2,738.53x = 5,239,669.57
5. Step 5: Solve for x
   x = 5,239,669.57/2,738.53
6. Step 6: Final answer
   x = 1,913.31