Finding the Fourth Proportional to 2,399.18, 3,313.62 and 1,601.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.18 : 3,313.62 = 1,601.10 : x
2. Step 2: Convert to fraction form
   2,399.18/3,313.62 = 1,601.10/x
3. Step 3: Cross multiply
   2,399.18x = 3,313.62 × 1,601.10
4. Step 4: Simplify right side
   2,399.18x = 5,305,436.98
5. Step 5: Solve for x
   x = 5,305,436.98/2,399.18
6. Step 6: Final answer
   x = 2,211.36