Finding the Fourth Proportional to 1,987.69, 2,743.02 and 1,103.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,987.69 : 2,743.02 = 1,103.53 : x
2. Step 2: Convert to fraction form
   1,987.69/2,743.02 = 1,103.53/x
3. Step 3: Cross multiply
   1,987.69x = 2,743.02 × 1,103.53
4. Step 4: Simplify right side
   1,987.69x = 3,027,004.86
5. Step 5: Solve for x
   x = 3,027,004.86/1,987.69
6. Step 6: Final answer
   x = 1,522.88