Finding the Fourth Proportional to 1,498.71, 2,067.84 and 939.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.71 : 2,067.84 = 939.45 : x
2. Step 2: Convert to fraction form
   1,498.71/2,067.84 = 939.45/x
3. Step 3: Cross multiply
   1,498.71x = 2,067.84 × 939.45
4. Step 4: Simplify right side
   1,498.71x = 1,942,632.29
5. Step 5: Solve for x
   x = 1,942,632.29/1,498.71
6. Step 6: Final answer
   x = 1,296.20