Finding the Fourth Proportional to 3,698.50, 5,103.73 and 2,019.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.50 : 5,103.73 = 2,019.58 : x
2. Step 2: Convert to fraction form
   3,698.50/5,103.73 = 2,019.58/x
3. Step 3: Cross multiply
   3,698.50x = 5,103.73 × 2,019.58
4. Step 4: Simplify right side
   3,698.50x = 10,307,373.23
5. Step 5: Solve for x
   x = 10,307,373.23/3,698.50
6. Step 6: Final answer
   x = 2,786.91