Finding the Fourth Proportional to 1,096.38, 1,512.56 and 723.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.38 : 1,512.56 = 723.56 : x
2. Step 2: Convert to fraction form
   1,096.38/1,512.56 = 723.56/x
3. Step 3: Cross multiply
   1,096.38x = 1,512.56 × 723.56
4. Step 4: Simplify right side
   1,096.38x = 1,094,427.91
5. Step 5: Solve for x
   x = 1,094,427.91/1,096.38
6. Step 6: Final answer
   x = 998.22