Finding the Fourth Proportional to 2,016.39, 3,025.05 and 845.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.39 : 3,025.05 = 845.73 : x
2. Step 2: Convert to fraction form
   2,016.39/3,025.05 = 845.73/x
3. Step 3: Cross multiply
   2,016.39x = 3,025.05 × 845.73
4. Step 4: Simplify right side
   2,016.39x = 2,558,375.54
5. Step 5: Solve for x
   x = 2,558,375.54/2,016.39
6. Step 6: Final answer
   x = 1,268.79