Finding the Fourth Proportional to 1,441.63, 1,989.98 and 938.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.63 : 1,989.98 = 938.17 : x
2. Step 2: Convert to fraction form
   1,441.63/1,989.98 = 938.17/x
3. Step 3: Cross multiply
   1,441.63x = 1,989.98 × 938.17
4. Step 4: Simplify right side
   1,441.63x = 1,866,939.54
5. Step 5: Solve for x
   x = 1,866,939.54/1,441.63
6. Step 6: Final answer
   x = 1,295.02