Finding the Fourth Proportional to 2,016.69, 2,781.06 and 1,574.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.69 : 2,781.06 = 1,574.43 : x
2. Step 2: Convert to fraction form
   2,016.69/2,781.06 = 1,574.43/x
3. Step 3: Cross multiply
   2,016.69x = 2,781.06 × 1,574.43
4. Step 4: Simplify right side
   2,016.69x = 4,378,584.30
5. Step 5: Solve for x
   x = 4,378,584.30/2,016.69
6. Step 6: Final answer
   x = 2,171.17