Finding the Fourth Proportional to 2,843.30, 4,268.15 and 2,196.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,843.30 : 4,268.15 = 2,196.90 : x
2. Step 2: Convert to fraction form
   2,843.30/4,268.15 = 2,196.90/x
3. Step 3: Cross multiply
   2,843.30x = 4,268.15 × 2,196.90
4. Step 4: Simplify right side
   2,843.30x = 9,376,698.74
5. Step 5: Solve for x
   x = 9,376,698.74/2,843.30
6. Step 6: Final answer
   x = 3,297.82