Finding the Fourth Proportional to 2,528.15, 3,792.62 and 1,067.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.15 : 3,792.62 = 1,067.31 : x
2. Step 2: Convert to fraction form
   2,528.15/3,792.62 = 1,067.31/x
3. Step 3: Cross multiply
   2,528.15x = 3,792.62 × 1,067.31
4. Step 4: Simplify right side
   2,528.15x = 4,047,903.92
5. Step 5: Solve for x
   x = 4,047,903.92/2,528.15
6. Step 6: Final answer
   x = 1,601.14