Finding the Fourth Proportional to 2,150.52, 3,227.08 and 851.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.52 : 3,227.08 = 851.96 : x
2. Step 2: Convert to fraction form
   2,150.52/3,227.08 = 851.96/x
3. Step 3: Cross multiply
   2,150.52x = 3,227.08 × 851.96
4. Step 4: Simplify right side
   2,150.52x = 2,749,343.08
5. Step 5: Solve for x
   x = 2,749,343.08/2,150.52
6. Step 6: Final answer
   x = 1,278.46