Finding the Fourth Proportional to 1,989.10, 2,744.72 and 1,104.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.10 : 2,744.72 = 1,104.76 : x
2. Step 2: Convert to fraction form
   1,989.10/2,744.72 = 1,104.76/x
3. Step 3: Cross multiply
   1,989.10x = 2,744.72 × 1,104.76
4. Step 4: Simplify right side
   1,989.10x = 3,032,243.14
5. Step 5: Solve for x
   x = 3,032,243.14/1,989.10
6. Step 6: Final answer
   x = 1,524.43