Finding the Fourth Proportional to 1,112.22, 1,667.93 and 495.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.22 : 1,667.93 = 495.81 : x
2. Step 2: Convert to fraction form
   1,112.22/1,667.93 = 495.81/x
3. Step 3: Cross multiply
   1,112.22x = 1,667.93 × 495.81
4. Step 4: Simplify right side
   1,112.22x = 826,973.89
5. Step 5: Solve for x
   x = 826,973.89/1,112.22
6. Step 6: Final answer
   x = 743.53