Finding the Fourth Proportional to 1,002.73, 1,495.55 and 939.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.73 : 1,495.55 = 939.94 : x
2. Step 2: Convert to fraction form
   1,002.73/1,495.55 = 939.94/x
3. Step 3: Cross multiply
   1,002.73x = 1,495.55 × 939.94
4. Step 4: Simplify right side
   1,002.73x = 1,405,717.44
5. Step 5: Solve for x
   x = 1,405,717.44/1,002.73
6. Step 6: Final answer
   x = 1,401.89