Finding the Fourth Proportional to 3,898.62, 5,382.72 and 3,062.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,898.62 : 5,382.72 = 3,062.70 : x
2. Step 2: Convert to fraction form
   3,898.62/5,382.72 = 3,062.70/x
3. Step 3: Cross multiply
   3,898.62x = 5,382.72 × 3,062.70
4. Step 4: Simplify right side
   3,898.62x = 16,485,656.54
5. Step 5: Solve for x
   x = 16,485,656.54/3,898.62
6. Step 6: Final answer
   x = 4,228.59