Finding the Fourth Proportional to 796.78, 1,097.31 and 723.34

Step by Step Solution

1. Step 1: Write the proportion equation
   796.78 : 1,097.31 = 723.34 : x
2. Step 2: Convert to fraction form
   796.78/1,097.31 = 723.34/x
3. Step 3: Cross multiply
   796.78x = 1,097.31 × 723.34
4. Step 4: Simplify right side
   796.78x = 793,728.22
5. Step 5: Solve for x
   x = 793,728.22/796.78
6. Step 6: Final answer
   x = 996.17