Finding the Fourth Proportional to 3,878.82, 5,815.39 and 1,244.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,878.82 : 5,815.39 = 1,244.83 : x
2. Step 2: Convert to fraction form
   3,878.82/5,815.39 = 1,244.83/x
3. Step 3: Cross multiply
   3,878.82x = 5,815.39 × 1,244.83
4. Step 4: Simplify right side
   3,878.82x = 7,239,171.93
5. Step 5: Solve for x
   x = 7,239,171.93/3,878.82
6. Step 6: Final answer
   x = 1,866.33