Finding the Fourth Proportional to 2,293.72, 3,434.34 and 2,143.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,293.72 : 3,434.34 = 2,143.96 : x
2. Step 2: Convert to fraction form
   2,293.72/3,434.34 = 2,143.96/x
3. Step 3: Cross multiply
   2,293.72x = 3,434.34 × 2,143.96
4. Step 4: Simplify right side
   2,293.72x = 7,363,087.59
5. Step 5: Solve for x
   x = 7,363,087.59/2,293.72
6. Step 6: Final answer
   x = 3,210.11