Finding the Fourth Proportional to 2,016.09, 3,023.76 and 845.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.09 : 3,023.76 = 845.78 : x
2. Step 2: Convert to fraction form
   2,016.09/3,023.76 = 845.78/x
3. Step 3: Cross multiply
   2,016.09x = 3,023.76 × 845.78
4. Step 4: Simplify right side
   2,016.09x = 2,557,420.61
5. Step 5: Solve for x
   x = 2,557,420.61/2,016.09
6. Step 6: Final answer
   x = 1,268.51