Finding the Fourth Proportional to 2,738.54, 4,108.73 and 889.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.54 : 4,108.73 = 889.72 : x
2. Step 2: Convert to fraction form
   2,738.54/4,108.73 = 889.72/x
3. Step 3: Cross multiply
   2,738.54x = 4,108.73 × 889.72
4. Step 4: Simplify right side
   2,738.54x = 3,655,604.54
5. Step 5: Solve for x
   x = 3,655,604.54/2,738.54
6. Step 6: Final answer
   x = 1,334.87