Finding the Fourth Proportional to 2,671.02, 4,007.20 and 822.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.02 : 4,007.20 = 822.06 : x
2. Step 2: Convert to fraction form
   2,671.02/4,007.20 = 822.06/x
3. Step 3: Cross multiply
   2,671.02x = 4,007.20 × 822.06
4. Step 4: Simplify right side
   2,671.02x = 3,294,158.83
5. Step 5: Solve for x
   x = 3,294,158.83/2,671.02
6. Step 6: Final answer
   x = 1,233.30