Finding the Fourth Proportional to 2,003.12, 3,004.92 and 1,028.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.12 : 3,004.92 = 1,028.96 : x
2. Step 2: Convert to fraction form
   2,003.12/3,004.92 = 1,028.96/x
3. Step 3: Cross multiply
   2,003.12x = 3,004.92 × 1,028.96
4. Step 4: Simplify right side
   2,003.12x = 3,091,942.48
5. Step 5: Solve for x
   x = 3,091,942.48/2,003.12
6. Step 6: Final answer
   x = 1,543.56