Finding the Fourth Proportional to 1,456.53, 2,007.67 and 984.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.53 : 2,007.67 = 984.28 : x
2. Step 2: Convert to fraction form
   1,456.53/2,007.67 = 984.28/x
3. Step 3: Cross multiply
   1,456.53x = 2,007.67 × 984.28
4. Step 4: Simplify right side
   1,456.53x = 1,976,109.43
5. Step 5: Solve for x
   x = 1,976,109.43/1,456.53
6. Step 6: Final answer
   x = 1,356.72