Finding the Fourth Proportional to 3,765.56, 5,196.83 and 2,819.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,765.56 : 5,196.83 = 2,819.68 : x
2. Step 2: Convert to fraction form
   3,765.56/5,196.83 = 2,819.68/x
3. Step 3: Cross multiply
   3,765.56x = 5,196.83 × 2,819.68
4. Step 4: Simplify right side
   3,765.56x = 14,653,370.52
5. Step 5: Solve for x
   x = 14,653,370.52/3,765.56
6. Step 6: Final answer
   x = 3,891.42