Finding the Fourth Proportional to 2,238.89, 3,357.38 and 851.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.89 : 3,357.38 = 851.46 : x
2. Step 2: Convert to fraction form
   2,238.89/3,357.38 = 851.46/x
3. Step 3: Cross multiply
   2,238.89x = 3,357.38 × 851.46
4. Step 4: Simplify right side
   2,238.89x = 2,858,670.52
5. Step 5: Solve for x
   x = 2,858,670.52/2,238.89
6. Step 6: Final answer
   x = 1,276.83