Finding the Fourth Proportional to 1,988.07, 2,743.56 and 1,103.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.07 : 2,743.56 = 1,103.96 : x
2. Step 2: Convert to fraction form
   1,988.07/2,743.56 = 1,103.96/x
3. Step 3: Cross multiply
   1,988.07x = 2,743.56 × 1,103.96
4. Step 4: Simplify right side
   1,988.07x = 3,028,780.50
5. Step 5: Solve for x
   x = 3,028,780.50/1,988.07
6. Step 6: Final answer
   x = 1,523.48