Finding the Fourth Proportional to 2,448.78, 3,673.71 and 805.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,448.78 : 3,673.71 = 805.83 : x
2. Step 2: Convert to fraction form
   2,448.78/3,673.71 = 805.83/x
3. Step 3: Cross multiply
   2,448.78x = 3,673.71 × 805.83
4. Step 4: Simplify right side
   2,448.78x = 2,960,385.73
5. Step 5: Solve for x
   x = 2,960,385.73/2,448.78
6. Step 6: Final answer
   x = 1,208.92