Finding the Fourth Proportional to 2,269.27, 3,404.18 and 808.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.27 : 3,404.18 = 808.57 : x
2. Step 2: Convert to fraction form
   2,269.27/3,404.18 = 808.57/x
3. Step 3: Cross multiply
   2,269.27x = 3,404.18 × 808.57
4. Step 4: Simplify right side
   2,269.27x = 2,752,517.82
5. Step 5: Solve for x
   x = 2,752,517.82/2,269.27
6. Step 6: Final answer
   x = 1,212.95