Finding the Fourth Proportional to 738.83, 1,016.42 and 718.34

Step by Step Solution

1. Step 1: Write the proportion equation
   738.83 : 1,016.42 = 718.34 : x
2. Step 2: Convert to fraction form
   738.83/1,016.42 = 718.34/x
3. Step 3: Cross multiply
   738.83x = 1,016.42 × 718.34
4. Step 4: Simplify right side
   738.83x = 730,126.47
5. Step 5: Solve for x
   x = 730,126.47/738.83
6. Step 6: Final answer
   x = 988.23