Finding the Fourth Proportional to 1,984.97, 2,739.21 and 1,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.97 : 2,739.21 = 1,100.72 : x
2. Step 2: Convert to fraction form
   1,984.97/2,739.21 = 1,100.72/x
3. Step 3: Cross multiply
   1,984.97x = 2,739.21 × 1,100.72
4. Step 4: Simplify right side
   1,984.97x = 3,015,103.23
5. Step 5: Solve for x
   x = 3,015,103.23/1,984.97
6. Step 6: Final answer
   x = 1,518.97