Finding the Fourth Proportional to 1,738.28, 2,397.78 and 1,108.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,738.28 : 2,397.78 = 1,108.91 : x
2. Step 2: Convert to fraction form
   1,738.28/2,397.78 = 1,108.91/x
3. Step 3: Cross multiply
   1,738.28x = 2,397.78 × 1,108.91
4. Step 4: Simplify right side
   1,738.28x = 2,658,910.23
5. Step 5: Solve for x
   x = 2,658,910.23/1,738.28
6. Step 6: Final answer
   x = 1,529.63