Finding the Fourth Proportional to 2,667.14, 4,000.83 and 818.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.14 : 4,000.83 = 818.12 : x
2. Step 2: Convert to fraction form
   2,667.14/4,000.83 = 818.12/x
3. Step 3: Cross multiply
   2,667.14x = 4,000.83 × 818.12
4. Step 4: Simplify right side
   2,667.14x = 3,273,159.04
5. Step 5: Solve for x
   x = 3,273,159.04/2,667.14
6. Step 6: Final answer
   x = 1,227.22