Finding the Fourth Proportional to 2,198.29, 3,294.16 and 2,143.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198.29 : 3,294.16 = 2,143.96 : x
2. Step 2: Convert to fraction form
   2,198.29/3,294.16 = 2,143.96/x
3. Step 3: Cross multiply
   2,198.29x = 3,294.16 × 2,143.96
4. Step 4: Simplify right side
   2,198.29x = 7,062,547.27
5. Step 5: Solve for x
   x = 7,062,547.27/2,198.29
6. Step 6: Final answer
   x = 3,212.75