Finding the Fourth Proportional to 2,860.43, 3,949.29 and 2,196.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,860.43 : 3,949.29 = 2,196.09 : x
2. Step 2: Convert to fraction form
   2,860.43/3,949.29 = 2,196.09/x
3. Step 3: Cross multiply
   2,860.43x = 3,949.29 × 2,196.09
4. Step 4: Simplify right side
   2,860.43x = 8,672,996.28
5. Step 5: Solve for x
   x = 8,672,996.28/2,860.43
6. Step 6: Final answer
   x = 3,032.07