Finding the Fourth Proportional to 2,843.36, 3,922.72 and 2,099.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,843.36 : 3,922.72 = 2,099.12 : x
2. Step 2: Convert to fraction form
   2,843.36/3,922.72 = 2,099.12/x
3. Step 3: Cross multiply
   2,843.36x = 3,922.72 × 2,099.12
4. Step 4: Simplify right side
   2,843.36x = 8,234,260.01
5. Step 5: Solve for x
   x = 8,234,260.01/2,843.36
6. Step 6: Final answer
   x = 2,895.96