Finding the Fourth Proportional to 2,452.52, 3,679.23 and 809.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.52 : 3,679.23 = 809.18 : x
2. Step 2: Convert to fraction form
   2,452.52/3,679.23 = 809.18/x
3. Step 3: Cross multiply
   2,452.52x = 3,679.23 × 809.18
4. Step 4: Simplify right side
   2,452.52x = 2,977,159.33
5. Step 5: Solve for x
   x = 2,977,159.33/2,452.52
6. Step 6: Final answer
   x = 1,213.92