Finding the Fourth Proportional to 2,016.90, 2,783.87 and 1,419.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.90 : 2,783.87 = 1,419.53 : x
2. Step 2: Convert to fraction form
   2,016.90/2,783.87 = 1,419.53/x
3. Step 3: Cross multiply
   2,016.90x = 2,783.87 × 1,419.53
4. Step 4: Simplify right side
   2,016.90x = 3,951,771.29
5. Step 5: Solve for x
   x = 3,951,771.29/2,016.90
6. Step 6: Final answer
   x = 1,959.33