Finding the Fourth Proportional to 1,111.36, 1,667.43 and 495.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.36 : 1,667.43 = 495.01 : x
2. Step 2: Convert to fraction form
   1,111.36/1,667.43 = 495.01/x
3. Step 3: Cross multiply
   1,111.36x = 1,667.43 × 495.01
4. Step 4: Simplify right side
   1,111.36x = 825,394.52
5. Step 5: Solve for x
   x = 825,394.52/1,111.36
6. Step 6: Final answer
   x = 742.69