Finding the Fourth Proportional to 3,698.08, 5,103.16 and 2,019.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.08 : 5,103.16 = 2,019.49 : x
2. Step 2: Convert to fraction form
   3,698.08/5,103.16 = 2,019.49/x
3. Step 3: Cross multiply
   3,698.08x = 5,103.16 × 2,019.49
4. Step 4: Simplify right side
   3,698.08x = 10,305,762.78
5. Step 5: Solve for x
   x = 10,305,762.78/3,698.08
6. Step 6: Final answer
   x = 2,786.79