Finding the Fourth Proportional to 1,426.96, 2,140.72 and 733.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.96 : 2,140.72 = 733.28 : x
2. Step 2: Convert to fraction form
   1,426.96/2,140.72 = 733.28/x
3. Step 3: Cross multiply
   1,426.96x = 2,140.72 × 733.28
4. Step 4: Simplify right side
   1,426.96x = 1,569,747.16
5. Step 5: Solve for x
   x = 1,569,747.16/1,426.96
6. Step 6: Final answer
   x = 1,100.06