Finding the Fourth Proportional to 3,949.67, 5,919.89 and 2,193.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949.67 : 5,919.89 = 2,193.83 : x
2. Step 2: Convert to fraction form
   3,949.67/5,919.89 = 2,193.83/x
3. Step 3: Cross multiply
   3,949.67x = 5,919.89 × 2,193.83
4. Step 4: Simplify right side
   3,949.67x = 12,987,213.91
5. Step 5: Solve for x
   x = 12,987,213.91/3,949.67
6. Step 6: Final answer
   x = 3,288.17