Finding the Fourth Proportional to 1,424.87, 1,964.77 and 926.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424.87 : 1,964.77 = 926.59 : x
2. Step 2: Convert to fraction form
   1,424.87/1,964.77 = 926.59/x
3. Step 3: Cross multiply
   1,424.87x = 1,964.77 × 926.59
4. Step 4: Simplify right side
   1,424.87x = 1,820,527.66
5. Step 5: Solve for x
   x = 1,820,527.66/1,424.87
6. Step 6: Final answer
   x = 1,277.68