Finding the Fourth Proportional to 2,738.48, 4,105.28 and 1,275.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.48 : 4,105.28 = 1,275.62 : x
2. Step 2: Convert to fraction form
   2,738.48/4,105.28 = 1,275.62/x
3. Step 3: Cross multiply
   2,738.48x = 4,105.28 × 1,275.62
4. Step 4: Simplify right side
   2,738.48x = 5,236,750.37
5. Step 5: Solve for x
   x = 5,236,750.37/2,738.48
6. Step 6: Final answer
   x = 1,912.29