Finding the Fourth Proportional to 1,096.28, 1,645.52 and 788.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.28 : 1,645.52 = 788.48 : x
2. Step 2: Convert to fraction form
   1,096.28/1,645.52 = 788.48/x
3. Step 3: Cross multiply
   1,096.28x = 1,645.52 × 788.48
4. Step 4: Simplify right side
   1,096.28x = 1,297,459.61
5. Step 5: Solve for x
   x = 1,297,459.61/1,096.28
6. Step 6: Final answer
   x = 1,183.51