Finding the Fourth Proportional to 3,960.78, 5,940.45 and 1,769.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,960.78 : 5,940.45 = 1,769.10 : x
2. Step 2: Convert to fraction form
   3,960.78/5,940.45 = 1,769.10/x
3. Step 3: Cross multiply
   3,960.78x = 5,940.45 × 1,769.10
4. Step 4: Simplify right side
   3,960.78x = 10,509,250.10
5. Step 5: Solve for x
   x = 10,509,250.10/3,960.78
6. Step 6: Final answer
   x = 2,653.33