Finding the Fourth Proportional to 3,819.56, 5,273.57 and 2,386.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,819.56 : 5,273.57 = 2,386.12 : x
2. Step 2: Convert to fraction form
   3,819.56/5,273.57 = 2,386.12/x
3. Step 3: Cross multiply
   3,819.56x = 5,273.57 × 2,386.12
4. Step 4: Simplify right side
   3,819.56x = 12,583,358.69
5. Step 5: Solve for x
   x = 12,583,358.69/3,819.56
6. Step 6: Final answer
   x = 3,294.45