Finding the Fourth Proportional to 1,988.06, 2,743.48 and 1,103.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.06 : 2,743.48 = 1,103.86 : x
2. Step 2: Convert to fraction form
   1,988.06/2,743.48 = 1,103.86/x
3. Step 3: Cross multiply
   1,988.06x = 2,743.48 × 1,103.86
4. Step 4: Simplify right side
   1,988.06x = 3,028,398.60
5. Step 5: Solve for x
   x = 3,028,398.60/1,988.06
6. Step 6: Final answer
   x = 1,523.29