Finding the Fourth Proportional to 4,062.40, 5,608.72 and 3,318.15

Step by Step Solution

1. Step 1: Write the proportion equation
   4,062.40 : 5,608.72 = 3,318.15 : x
2. Step 2: Convert to fraction form
   4,062.40/5,608.72 = 3,318.15/x
3. Step 3: Cross multiply
   4,062.40x = 5,608.72 × 3,318.15
4. Step 4: Simplify right side
   4,062.40x = 18,610,574.27
5. Step 5: Solve for x
   x = 18,610,574.27/4,062.40
6. Step 6: Final answer
   x = 4,581.18