Finding the Fourth Proportional to 1,426.56, 1,967.92 and 984.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.56 : 1,967.92 = 984.72 : x
2. Step 2: Convert to fraction form
   1,426.56/1,967.92 = 984.72/x
3. Step 3: Cross multiply
   1,426.56x = 1,967.92 × 984.72
4. Step 4: Simplify right side
   1,426.56x = 1,937,850.18
5. Step 5: Solve for x
   x = 1,937,850.18/1,426.56
6. Step 6: Final answer
   x = 1,358.41