Finding the Fourth Proportional to 1,112.04, 1,667.55 and 495.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.04 : 1,667.55 = 495.43 : x
2. Step 2: Convert to fraction form
   1,112.04/1,667.55 = 495.43/x
3. Step 3: Cross multiply
   1,112.04x = 1,667.55 × 495.43
4. Step 4: Simplify right side
   1,112.04x = 826,154.30
5. Step 5: Solve for x
   x = 826,154.30/1,112.04
6. Step 6: Final answer
   x = 742.92