Finding the Fourth Proportional to 3,671.89, 5,067.15 and 2,078.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,671.89 : 5,067.15 = 2,078.84 : x
2. Step 2: Convert to fraction form
   3,671.89/5,067.15 = 2,078.84/x
3. Step 3: Cross multiply
   3,671.89x = 5,067.15 × 2,078.84
4. Step 4: Simplify right side
   3,671.89x = 10,533,794.96
5. Step 5: Solve for x
   x = 10,533,794.96/3,671.89
6. Step 6: Final answer
   x = 2,868.77