Finding the Fourth Proportional to 2,574.27, 3,860.06 and 818.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.27 : 3,860.06 = 818.73 : x
2. Step 2: Convert to fraction form
   2,574.27/3,860.06 = 818.73/x
3. Step 3: Cross multiply
   2,574.27x = 3,860.06 × 818.73
4. Step 4: Simplify right side
   2,574.27x = 3,160,342.83
5. Step 5: Solve for x
   x = 3,160,342.83/2,574.27
6. Step 6: Final answer
   x = 1,227.67