Finding the Fourth Proportional to 2,667.94, 4,001.90 and 818.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.94 : 4,001.90 = 818.98 : x
2. Step 2: Convert to fraction form
   2,667.94/4,001.90 = 818.98/x
3. Step 3: Cross multiply
   2,667.94x = 4,001.90 × 818.98
4. Step 4: Simplify right side
   2,667.94x = 3,277,461.96
5. Step 5: Solve for x
   x = 3,277,461.96/2,667.94
6. Step 6: Final answer
   x = 1,228.46