Finding the Fourth Proportional to 2,196.96, 3,293.52 and 828

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.96 : 3,293.52 = 828 : x
2. Step 2: Convert to fraction form
   2,196.96/3,293.52 = 828/x
3. Step 3: Cross multiply
   2,196.96x = 3,293.52 × 828
4. Step 4: Simplify right side
   2,196.96x = 2,727,034.56
5. Step 5: Solve for x
   x = 2,727,034.56/2,196.96
6. Step 6: Final answer
   x = 1,241.28