Finding the Fourth Proportional to 1,949.31, 2,689.74 and 1,109.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,949.31 : 2,689.74 = 1,109.54 : x
2. Step 2: Convert to fraction form
   1,949.31/2,689.74 = 1,109.54/x
3. Step 3: Cross multiply
   1,949.31x = 2,689.74 × 1,109.54
4. Step 4: Simplify right side
   1,949.31x = 2,984,380.84
5. Step 5: Solve for x
   x = 2,984,380.84/1,949.31
6. Step 6: Final answer
   x = 1,530.99