Finding the Fourth Proportional to 2,554.27, 3,830.49 and 822.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554.27 : 3,830.49 = 822.89 : x
2. Step 2: Convert to fraction form
   2,554.27/3,830.49 = 822.89/x
3. Step 3: Cross multiply
   2,554.27x = 3,830.49 × 822.89
4. Step 4: Simplify right side
   2,554.27x = 3,152,081.49
5. Step 5: Solve for x
   x = 3,152,081.49/2,554.27
6. Step 6: Final answer
   x = 1,234.05