Finding the Fourth Proportional to 1,426.71, 2,140.77 and 801.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.71 : 2,140.77 = 801.62 : x
2. Step 2: Convert to fraction form
   1,426.71/2,140.77 = 801.62/x
3. Step 3: Cross multiply
   1,426.71x = 2,140.77 × 801.62
4. Step 4: Simplify right side
   1,426.71x = 1,716,084.05
5. Step 5: Solve for x
   x = 1,716,084.05/1,426.71
6. Step 6: Final answer
   x = 1,202.83