Finding the Fourth Proportional to 3,769.12, 5,199.69 and 2,443.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,769.12 : 5,199.69 = 2,443.15 : x
2. Step 2: Convert to fraction form
   3,769.12/5,199.69 = 2,443.15/x
3. Step 3: Cross multiply
   3,769.12x = 5,199.69 × 2,443.15
4. Step 4: Simplify right side
   3,769.12x = 12,703,622.62
5. Step 5: Solve for x
   x = 12,703,622.62/3,769.12
6. Step 6: Final answer
   x = 3,370.45