Finding the Fourth Proportional to 1,498.26, 2,066.78 and 938.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.26 : 2,066.78 = 938.62 : x
2. Step 2: Convert to fraction form
   1,498.26/2,066.78 = 938.62/x
3. Step 3: Cross multiply
   1,498.26x = 2,066.78 × 938.62
4. Step 4: Simplify right side
   1,498.26x = 1,939,921.04
5. Step 5: Solve for x
   x = 1,939,921.04/1,498.26
6. Step 6: Final answer
   x = 1,294.78