Finding the Fourth Proportional to 2,671.55, 4,007.71 and 822.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.55 : 4,007.71 = 822.82 : x
2. Step 2: Convert to fraction form
   2,671.55/4,007.71 = 822.82/x
3. Step 3: Cross multiply
   2,671.55x = 4,007.71 × 822.82
4. Step 4: Simplify right side
   2,671.55x = 3,297,611.87
5. Step 5: Solve for x
   x = 3,297,611.87/2,671.55
6. Step 6: Final answer
   x = 1,234.34