Finding the Fourth Proportional to 3,698.24, 5,103.59 and 2,019.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.24 : 5,103.59 = 2,019.69 : x
2. Step 2: Convert to fraction form
   3,698.24/5,103.59 = 2,019.69/x
3. Step 3: Cross multiply
   3,698.24x = 5,103.59 × 2,019.69
4. Step 4: Simplify right side
   3,698.24x = 10,307,659.59
5. Step 5: Solve for x
   x = 10,307,659.59/3,698.24
6. Step 6: Final answer
   x = 2,787.18