Finding the Fourth Proportional to 1,456.47, 2,007.59 and 984.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.47 : 2,007.59 = 984.22 : x
2. Step 2: Convert to fraction form
   1,456.47/2,007.59 = 984.22/x
3. Step 3: Cross multiply
   1,456.47x = 2,007.59 × 984.22
4. Step 4: Simplify right side
   1,456.47x = 1,975,900.29
5. Step 5: Solve for x
   x = 1,975,900.29/1,456.47
6. Step 6: Final answer
   x = 1,356.64