Finding the Fourth Proportional to 1,738.58, 2,399.17 and 1,040.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,738.58 : 2,399.17 = 1,040.34 : x
2. Step 2: Convert to fraction form
   1,738.58/2,399.17 = 1,040.34/x
3. Step 3: Cross multiply
   1,738.58x = 2,399.17 × 1,040.34
4. Step 4: Simplify right side
   1,738.58x = 2,495,952.52
5. Step 5: Solve for x
   x = 2,495,952.52/1,738.58
6. Step 6: Final answer
   x = 1,435.63