Finding the Fourth Proportional to 2,738.40, 4,106.38 and 1,276.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.40 : 4,106.38 = 1,276.75 : x
2. Step 2: Convert to fraction form
   2,738.40/4,106.38 = 1,276.75/x
3. Step 3: Cross multiply
   2,738.40x = 4,106.38 × 1,276.75
4. Step 4: Simplify right side
   2,738.40x = 5,242,820.67
5. Step 5: Solve for x
   x = 5,242,820.67/2,738.40
6. Step 6: Final answer
   x = 1,914.56