Finding the Fourth Proportional to 1,793.57, 2,689.23 and 818.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,793.57 : 2,689.23 = 818.42 : x
2. Step 2: Convert to fraction form
   1,793.57/2,689.23 = 818.42/x
3. Step 3: Cross multiply
   1,793.57x = 2,689.23 × 818.42
4. Step 4: Simplify right side
   1,793.57x = 2,200,919.62
5. Step 5: Solve for x
   x = 2,200,919.62/1,793.57
6. Step 6: Final answer
   x = 1,227.12