Finding the Fourth Proportional to 1,974.10, 2,724.42 and 1,089.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,974.10 : 2,724.42 = 1,089.98 : x
2. Step 2: Convert to fraction form
   1,974.10/2,724.42 = 1,089.98/x
3. Step 3: Cross multiply
   1,974.10x = 2,724.42 × 1,089.98
4. Step 4: Simplify right side
   1,974.10x = 2,969,563.31
5. Step 5: Solve for x
   x = 2,969,563.31/1,974.10
6. Step 6: Final answer
   x = 1,504.26