Finding the Fourth Proportional to 1,111.38, 1,667.25 and 494.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.38 : 1,667.25 = 494.97 : x
2. Step 2: Convert to fraction form
   1,111.38/1,667.25 = 494.97/x
3. Step 3: Cross multiply
   1,111.38x = 1,667.25 × 494.97
4. Step 4: Simplify right side
   1,111.38x = 825,238.73
5. Step 5: Solve for x
   x = 825,238.73/1,111.38
6. Step 6: Final answer
   x = 742.54