Finding the Fourth Proportional to 2,150.24, 3,225.32 and 851.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.24 : 3,225.32 = 851.68 : x
2. Step 2: Convert to fraction form
   2,150.24/3,225.32 = 851.68/x
3. Step 3: Cross multiply
   2,150.24x = 3,225.32 × 851.68
4. Step 4: Simplify right side
   2,150.24x = 2,746,940.54
5. Step 5: Solve for x
   x = 2,746,940.54/2,150.24
6. Step 6: Final answer
   x = 1,277.50