Finding the Fourth Proportional to 3,976.50, 5,488.05 and 2,320.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.50 : 5,488.05 = 2,320.50 : x
2. Step 2: Convert to fraction form
   3,976.50/5,488.05 = 2,320.50/x
3. Step 3: Cross multiply
   3,976.50x = 5,488.05 × 2,320.50
4. Step 4: Simplify right side
   3,976.50x = 12,735,020.03
5. Step 5: Solve for x
   x = 12,735,020.03/3,976.50
6. Step 6: Final answer
   x = 3,202.57