Finding the Fourth Proportional to 1,426.97, 1,969.47 and 923.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.97 : 1,969.47 = 923.45 : x
2. Step 2: Convert to fraction form
   1,426.97/1,969.47 = 923.45/x
3. Step 3: Cross multiply
   1,426.97x = 1,969.47 × 923.45
4. Step 4: Simplify right side
   1,426.97x = 1,818,697.22
5. Step 5: Solve for x
   x = 1,818,697.22/1,426.97
6. Step 6: Final answer
   x = 1,274.52