Finding the Fourth Proportional to 1,988.15, 2,743.52 and 1,103.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.15 : 2,743.52 = 1,103.99 : x
2. Step 2: Convert to fraction form
   1,988.15/2,743.52 = 1,103.99/x
3. Step 3: Cross multiply
   1,988.15x = 2,743.52 × 1,103.99
4. Step 4: Simplify right side
   1,988.15x = 3,028,799.41
5. Step 5: Solve for x
   x = 3,028,799.41/1,988.15
6. Step 6: Final answer
   x = 1,523.43