Finding the Fourth Proportional to 2,846.72, 4,258.82 and 2,155.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,846.72 : 4,258.82 = 2,155.38 : x
2. Step 2: Convert to fraction form
   2,846.72/4,258.82 = 2,155.38/x
3. Step 3: Cross multiply
   2,846.72x = 4,258.82 × 2,155.38
4. Step 4: Simplify right side
   2,846.72x = 9,179,364.67
5. Step 5: Solve for x
   x = 9,179,364.67/2,846.72
6. Step 6: Final answer
   x = 3,224.55