Finding the Fourth Proportional to 2,550.04, 3,825.18 and 818.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.04 : 3,825.18 = 818.56 : x
2. Step 2: Convert to fraction form
   2,550.04/3,825.18 = 818.56/x
3. Step 3: Cross multiply
   2,550.04x = 3,825.18 × 818.56
4. Step 4: Simplify right side
   2,550.04x = 3,131,139.34
5. Step 5: Solve for x
   x = 3,131,139.34/2,550.04
6. Step 6: Final answer
   x = 1,227.88