Finding the Fourth Proportional to 1,235.58, 1,704.83 and 738.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,235.58 : 1,704.83 = 738.15 : x
2. Step 2: Convert to fraction form
   1,235.58/1,704.83 = 738.15/x
3. Step 3: Cross multiply
   1,235.58x = 1,704.83 × 738.15
4. Step 4: Simplify right side
   1,235.58x = 1,258,420.26
5. Step 5: Solve for x
   x = 1,258,420.26/1,235.58
6. Step 6: Final answer
   x = 1,018.49