Finding the Fourth Proportional to 1,426.46, 1,965.80 and 983.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.46 : 1,965.80 = 983.56 : x
2. Step 2: Convert to fraction form
   1,426.46/1,965.80 = 983.56/x
3. Step 3: Cross multiply
   1,426.46x = 1,965.80 × 983.56
4. Step 4: Simplify right side
   1,426.46x = 1,933,482.25
5. Step 5: Solve for x
   x = 1,933,482.25/1,426.46
6. Step 6: Final answer
   x = 1,355.44