Finding the Fourth Proportional to 2,250.72, 3,103.20 and 1,808.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250.72 : 3,103.20 = 1,808.64 : x
2. Step 2: Convert to fraction form
   2,250.72/3,103.20 = 1,808.64/x
3. Step 3: Cross multiply
   2,250.72x = 3,103.20 × 1,808.64
4. Step 4: Simplify right side
   2,250.72x = 5,612,571.65
5. Step 5: Solve for x
   x = 5,612,571.65/2,250.72
6. Step 6: Final answer
   x = 2,493.68