Finding the Fourth Proportional to 1,988.96, 2,744.78 and 1,104.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.96 : 2,744.78 = 1,104.75 : x
2. Step 2: Convert to fraction form
   1,988.96/2,744.78 = 1,104.75/x
3. Step 3: Cross multiply
   1,988.96x = 2,744.78 × 1,104.75
4. Step 4: Simplify right side
   1,988.96x = 3,032,290.18
5. Step 5: Solve for x
   x = 3,032,290.18/1,988.96
6. Step 6: Final answer
   x = 1,524.56