Finding the Fourth Proportional to 3,965.80, 5,940.06 and 3,314.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,965.80 : 5,940.06 = 3,314.56 : x
2. Step 2: Convert to fraction form
   3,965.80/5,940.06 = 3,314.56/x
3. Step 3: Cross multiply
   3,965.80x = 5,940.06 × 3,314.56
4. Step 4: Simplify right side
   3,965.80x = 19,688,685.27
5. Step 5: Solve for x
   x = 19,688,685.27/3,965.80
6. Step 6: Final answer
   x = 4,964.62