Finding the Fourth Proportional to 2,196.28, 3,294.08 and 809.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.28 : 3,294.08 = 809.42 : x
2. Step 2: Convert to fraction form
   2,196.28/3,294.08 = 809.42/x
3. Step 3: Cross multiply
   2,196.28x = 3,294.08 × 809.42
4. Step 4: Simplify right side
   2,196.28x = 2,666,290.19
5. Step 5: Solve for x
   x = 2,666,290.19/2,196.28
6. Step 6: Final answer
   x = 1,214.01