Finding the Fourth Proportional to 1,426.42, 1,968.96 and 985.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.42 : 1,968.96 = 985.42 : x
2. Step 2: Convert to fraction form
   1,426.42/1,968.96 = 985.42/x
3. Step 3: Cross multiply
   1,426.42x = 1,968.96 × 985.42
4. Step 4: Simplify right side
   1,426.42x = 1,940,252.56
5. Step 5: Solve for x
   x = 1,940,252.56/1,426.42
6. Step 6: Final answer
   x = 1,360.23