Finding the Fourth Proportional to 2,016.56, 2,782.14 and 1,318.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.56 : 2,782.14 = 1,318.34 : x
2. Step 2: Convert to fraction form
   2,016.56/2,782.14 = 1,318.34/x
3. Step 3: Cross multiply
   2,016.56x = 2,782.14 × 1,318.34
4. Step 4: Simplify right side
   2,016.56x = 3,667,806.45
5. Step 5: Solve for x
   x = 3,667,806.45/2,016.56
6. Step 6: Final answer
   x = 1,818.84