Finding the Fourth Proportional to 2,155.23, 3,229.25 and 2,074.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.23 : 3,229.25 = 2,074.23 : x
2. Step 2: Convert to fraction form
   2,155.23/3,229.25 = 2,074.23/x
3. Step 3: Cross multiply
   2,155.23x = 3,229.25 × 2,074.23
4. Step 4: Simplify right side
   2,155.23x = 6,698,196.86
5. Step 5: Solve for x
   x = 6,698,196.86/2,155.23
6. Step 6: Final answer
   x = 3,107.88