Finding the Fourth Proportional to 2,050.80, 3,076.73 and 818.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,050.80 : 3,076.73 = 818.21 : x
2. Step 2: Convert to fraction form
   2,050.80/3,076.73 = 818.21/x
3. Step 3: Cross multiply
   2,050.80x = 3,076.73 × 818.21
4. Step 4: Simplify right side
   2,050.80x = 2,517,391.78
5. Step 5: Solve for x
   x = 2,517,391.78/2,050.80
6. Step 6: Final answer
   x = 1,227.52