Finding the Fourth Proportional to 1,235.72, 1,705.16 and 738.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,235.72 : 1,705.16 = 738.29 : x
2. Step 2: Convert to fraction form
   1,235.72/1,705.16 = 738.29/x
3. Step 3: Cross multiply
   1,235.72x = 1,705.16 × 738.29
4. Step 4: Simplify right side
   1,235.72x = 1,258,908.69
5. Step 5: Solve for x
   x = 1,258,908.69/1,235.72
6. Step 6: Final answer
   x = 1,018.76