Finding the Fourth Proportional to 2,549.97, 3,824.95 and 818.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.97 : 3,824.95 = 818.59 : x
2. Step 2: Convert to fraction form
   2,549.97/3,824.95 = 818.59/x
3. Step 3: Cross multiply
   2,549.97x = 3,824.95 × 818.59
4. Step 4: Simplify right side
   2,549.97x = 3,131,065.82
5. Step 5: Solve for x
   x = 3,131,065.82/2,549.97
6. Step 6: Final answer
   x = 1,227.88