Finding the Fourth Proportional to 1,426.78, 2,140.85 and 695.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.78 : 2,140.85 = 695.96 : x
2. Step 2: Convert to fraction form
   1,426.78/2,140.85 = 695.96/x
3. Step 3: Cross multiply
   1,426.78x = 2,140.85 × 695.96
4. Step 4: Simplify right side
   1,426.78x = 1,489,945.03
5. Step 5: Solve for x
   x = 1,489,945.03/1,426.78
6. Step 6: Final answer
   x = 1,044.27