Finding the Fourth Proportional to 2,267.72, 3,398.84 and 1,171.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.72 : 3,398.84 = 1,171.49 : x
2. Step 2: Convert to fraction form
   2,267.72/3,398.84 = 1,171.49/x
3. Step 3: Cross multiply
   2,267.72x = 3,398.84 × 1,171.49
4. Step 4: Simplify right side
   2,267.72x = 3,981,684.22
5. Step 5: Solve for x
   x = 3,981,684.22/2,267.72
6. Step 6: Final answer
   x = 1,755.81