Finding the Fourth Proportional to 1,988.76, 2,744.28 and 1,104.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.76 : 2,744.28 = 1,104.42 : x
2. Step 2: Convert to fraction form
   1,988.76/2,744.28 = 1,104.42/x
3. Step 3: Cross multiply
   1,988.76x = 2,744.28 × 1,104.42
4. Step 4: Simplify right side
   1,988.76x = 3,030,837.72
5. Step 5: Solve for x
   x = 3,030,837.72/1,988.76
6. Step 6: Final answer
   x = 1,523.98