Finding the Fourth Proportional to 2,143.92, 2,960.00 and 1,919.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.92 : 2,960.00 = 1,919.46 : x
2. Step 2: Convert to fraction form
   2,143.92/2,960.00 = 1,919.46/x
3. Step 3: Cross multiply
   2,143.92x = 2,960.00 × 1,919.46
4. Step 4: Simplify right side
   2,143.92x = 5,681,592.00
5. Step 5: Solve for x
   x = 5,681,592.00/2,143.92
6. Step 6: Final answer
   x = 2,650.10