Finding the Fourth Proportional to 1,989.12, 2,744.96 and 1,104.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.12 : 2,744.96 = 1,104.86 : x
2. Step 2: Convert to fraction form
   1,989.12/2,744.96 = 1,104.86/x
3. Step 3: Cross multiply
   1,989.12x = 2,744.96 × 1,104.86
4. Step 4: Simplify right side
   1,989.12x = 3,032,796.51
5. Step 5: Solve for x
   x = 3,032,796.51/1,989.12
6. Step 6: Final answer
   x = 1,524.69