Finding the Fourth Proportional to 3,960.72, 5,936.76 and 1,766.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,960.72 : 5,936.76 = 1,766.46 : x
2. Step 2: Convert to fraction form
   3,960.72/5,936.76 = 1,766.46/x
3. Step 3: Cross multiply
   3,960.72x = 5,936.76 × 1,766.46
4. Step 4: Simplify right side
   3,960.72x = 10,487,049.07
5. Step 5: Solve for x
   x = 10,487,049.07/3,960.72
6. Step 6: Final answer
   x = 2,647.76