Finding the Fourth Proportional to 1,113.83, 1,667.23 and 996.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113.83 : 1,667.23 = 996.43 : x
2. Step 2: Convert to fraction form
   1,113.83/1,667.23 = 996.43/x
3. Step 3: Cross multiply
   1,113.83x = 1,667.23 × 996.43
4. Step 4: Simplify right side
   1,113.83x = 1,661,271.33
5. Step 5: Solve for x
   x = 1,661,271.33/1,113.83
6. Step 6: Final answer
   x = 1,491.50