Finding the Fourth Proportional to 1,974.09, 2,724.28 and 1,089.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,974.09 : 2,724.28 = 1,089.89 : x
2. Step 2: Convert to fraction form
   1,974.09/2,724.28 = 1,089.89/x
3. Step 3: Cross multiply
   1,974.09x = 2,724.28 × 1,089.89
4. Step 4: Simplify right side
   1,974.09x = 2,969,151.91
5. Step 5: Solve for x
   x = 2,969,151.91/1,974.09
6. Step 6: Final answer
   x = 1,504.06