Finding the Fourth Proportional to 2,238.98, 3,357.96 and 851.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.98 : 3,357.96 = 851.82 : x
2. Step 2: Convert to fraction form
   2,238.98/3,357.96 = 851.82/x
3. Step 3: Cross multiply
   2,238.98x = 3,357.96 × 851.82
4. Step 4: Simplify right side
   2,238.98x = 2,860,377.49
5. Step 5: Solve for x
   x = 2,860,377.49/2,238.98
6. Step 6: Final answer
   x = 1,277.54