Finding the Fourth Proportional to 1,084.98, 1,498.58 and 939.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.98 : 1,498.58 = 939.41 : x
2. Step 2: Convert to fraction form
   1,084.98/1,498.58 = 939.41/x
3. Step 3: Cross multiply
   1,084.98x = 1,498.58 × 939.41
4. Step 4: Simplify right side
   1,084.98x = 1,407,768.85
5. Step 5: Solve for x
   x = 1,407,768.85/1,084.98
6. Step 6: Final answer
   x = 1,297.51