Finding the Fourth Proportional to 1,096.20, 1,512.72 and 676.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.20 : 1,512.72 = 676.56 : x
2. Step 2: Convert to fraction form
   1,096.20/1,512.72 = 676.56/x
3. Step 3: Cross multiply
   1,096.20x = 1,512.72 × 676.56
4. Step 4: Simplify right side
   1,096.20x = 1,023,445.84
5. Step 5: Solve for x
   x = 1,023,445.84/1,096.20
6. Step 6: Final answer
   x = 933.63