Finding the Fourth Proportional to 3,698.46, 5,103.90 and 2,019.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.46 : 5,103.90 = 2,019.83 : x
2. Step 2: Convert to fraction form
   3,698.46/5,103.90 = 2,019.83/x
3. Step 3: Cross multiply
   3,698.46x = 5,103.90 × 2,019.83
4. Step 4: Simplify right side
   3,698.46x = 10,309,009.14
5. Step 5: Solve for x
   x = 10,309,009.14/3,698.46
6. Step 6: Final answer
   x = 2,787.38