Finding the Fourth Proportional to 3,698.05, 5,103.35 and 2,019.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.05 : 5,103.35 = 2,019.48 : x
2. Step 2: Convert to fraction form
   3,698.05/5,103.35 = 2,019.48/x
3. Step 3: Cross multiply
   3,698.05x = 5,103.35 × 2,019.48
4. Step 4: Simplify right side
   3,698.05x = 10,306,103.16
5. Step 5: Solve for x
   x = 10,306,103.16/3,698.05
6. Step 6: Final answer
   x = 2,786.90