Finding the Fourth Proportional to 2,671.83, 3,691.31 and 2,229.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.83 : 3,691.31 = 2,229.57 : x
2. Step 2: Convert to fraction form
   2,671.83/3,691.31 = 2,229.57/x
3. Step 3: Cross multiply
   2,671.83x = 3,691.31 × 2,229.57
4. Step 4: Simplify right side
   2,671.83x = 8,230,022.89
5. Step 5: Solve for x
   x = 8,230,022.89/2,671.83
6. Step 6: Final answer
   x = 3,080.29