Finding the Fourth Proportional to 2,227.61, 3,341.98 and 667.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.61 : 3,341.98 = 667.61 : x
2. Step 2: Convert to fraction form
   2,227.61/3,341.98 = 667.61/x
3. Step 3: Cross multiply
   2,227.61x = 3,341.98 × 667.61
4. Step 4: Simplify right side
   2,227.61x = 2,231,145.95
5. Step 5: Solve for x
   x = 2,231,145.95/2,227.61
6. Step 6: Final answer
   x = 1,001.59