Finding the Fourth Proportional to 2,549.94, 3,824.55 and 818.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.94 : 3,824.55 = 818.34 : x
2. Step 2: Convert to fraction form
   2,549.94/3,824.55 = 818.34/x
3. Step 3: Cross multiply
   2,549.94x = 3,824.55 × 818.34
4. Step 4: Simplify right side
   2,549.94x = 3,129,782.25
5. Step 5: Solve for x
   x = 3,129,782.25/2,549.94
6. Step 6: Final answer
   x = 1,227.39