Finding the Fourth Proportional to 2,179.50, 3,004.86 and 1,960.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.50 : 3,004.86 = 1,960.80 : x
2. Step 2: Convert to fraction form
   2,179.50/3,004.86 = 1,960.80/x
3. Step 3: Cross multiply
   2,179.50x = 3,004.86 × 1,960.80
4. Step 4: Simplify right side
   2,179.50x = 5,891,929.49
5. Step 5: Solve for x
   x = 5,891,929.49/2,179.50
6. Step 6: Final answer
   x = 2,703.34