Finding the Fourth Proportional to 2,067.02, 3,102.06 and 1,288.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.02 : 3,102.06 = 1,288.16 : x
2. Step 2: Convert to fraction form
   2,067.02/3,102.06 = 1,288.16/x
3. Step 3: Cross multiply
   2,067.02x = 3,102.06 × 1,288.16
4. Step 4: Simplify right side
   2,067.02x = 3,995,949.61
5. Step 5: Solve for x
   x = 3,995,949.61/2,067.02
6. Step 6: Final answer
   x = 1,933.19