Finding the Fourth Proportional to 2,227.72, 3,341.62 and 667.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.72 : 3,341.62 = 667.36 : x
2. Step 2: Convert to fraction form
   2,227.72/3,341.62 = 667.36/x
3. Step 3: Cross multiply
   2,227.72x = 3,341.62 × 667.36
4. Step 4: Simplify right side
   2,227.72x = 2,230,063.52
5. Step 5: Solve for x
   x = 2,230,063.52/2,227.72
6. Step 6: Final answer
   x = 1,001.05