Finding the Fourth Proportional to 1,985.22, 2,739.72 and 1,101.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.22 : 2,739.72 = 1,101.12 : x
2. Step 2: Convert to fraction form
   1,985.22/2,739.72 = 1,101.12/x
3. Step 3: Cross multiply
   1,985.22x = 2,739.72 × 1,101.12
4. Step 4: Simplify right side
   1,985.22x = 3,016,760.49
5. Step 5: Solve for x
   x = 3,016,760.49/1,985.22
6. Step 6: Final answer
   x = 1,519.61