Finding the Fourth Proportional to 1,443.24, 2,164.41 and 922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.24 : 2,164.41 = 922.50 : x
2. Step 2: Convert to fraction form
   1,443.24/2,164.41 = 922.50/x
3. Step 3: Cross multiply
   1,443.24x = 2,164.41 × 922.50
4. Step 4: Simplify right side
   1,443.24x = 1,996,668.23
5. Step 5: Solve for x
   x = 1,996,668.23/1,443.24
6. Step 6: Final answer
   x = 1,383.46