Finding the Fourth Proportional to 2,019.50, 3,027.61 and 866.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.50 : 3,027.61 = 866.06 : x
2. Step 2: Convert to fraction form
   2,019.50/3,027.61 = 866.06/x
3. Step 3: Cross multiply
   2,019.50x = 3,027.61 × 866.06
4. Step 4: Simplify right side
   2,019.50x = 2,622,091.92
5. Step 5: Solve for x
   x = 2,622,091.92/2,019.50
6. Step 6: Final answer
   x = 1,298.39