Finding the Fourth Proportional to 1,426.56, 1,967.92 and 984.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.56 : 1,967.92 = 984.70 : x
2. Step 2: Convert to fraction form
   1,426.56/1,967.92 = 984.70/x
3. Step 3: Cross multiply
   1,426.56x = 1,967.92 × 984.70
4. Step 4: Simplify right side
   1,426.56x = 1,937,810.82
5. Step 5: Solve for x
   x = 1,937,810.82/1,426.56
6. Step 6: Final answer
   x = 1,358.38