Finding the Fourth Proportional to 1,426.24, 1,969.02 and 984.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.24 : 1,969.02 = 984.80 : x
2. Step 2: Convert to fraction form
   1,426.24/1,969.02 = 984.80/x
3. Step 3: Cross multiply
   1,426.24x = 1,969.02 × 984.80
4. Step 4: Simplify right side
   1,426.24x = 1,939,090.90
5. Step 5: Solve for x
   x = 1,939,090.90/1,426.24
6. Step 6: Final answer
   x = 1,359.58