Finding the Fourth Proportional to 1,436.24, 1,981.32 and 1,022.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.24 : 1,981.32 = 1,022.48 : x
2. Step 2: Convert to fraction form
   1,436.24/1,981.32 = 1,022.48/x
3. Step 3: Cross multiply
   1,436.24x = 1,981.32 × 1,022.48
4. Step 4: Simplify right side
   1,436.24x = 2,025,860.07
5. Step 5: Solve for x
   x = 2,025,860.07/1,436.24
6. Step 6: Final answer
   x = 1,410.53