Finding the Fourth Proportional to 3,114.16, 4,668.12 and 1,960.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,114.16 : 4,668.12 = 1,960.72 : x
2. Step 2: Convert to fraction form
   3,114.16/4,668.12 = 1,960.72/x
3. Step 3: Cross multiply
   3,114.16x = 4,668.12 × 1,960.72
4. Step 4: Simplify right side
   3,114.16x = 9,152,876.25
5. Step 5: Solve for x
   x = 9,152,876.25/3,114.16
6. Step 6: Final answer
   x = 2,939.12