Finding the Fourth Proportional to 1,426.76, 1,968.18 and 961.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.76 : 1,968.18 = 961.16 : x
2. Step 2: Convert to fraction form
   1,426.76/1,968.18 = 961.16/x
3. Step 3: Cross multiply
   1,426.76x = 1,968.18 × 961.16
4. Step 4: Simplify right side
   1,426.76x = 1,891,735.89
5. Step 5: Solve for x
   x = 1,891,735.89/1,426.76
6. Step 6: Final answer
   x = 1,325.90