Finding the Fourth Proportional to 2,465.45, 3,695.98 and 905.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,465.45 : 3,695.98 = 905.09 : x
2. Step 2: Convert to fraction form
   2,465.45/3,695.98 = 905.09/x
3. Step 3: Cross multiply
   2,465.45x = 3,695.98 × 905.09
4. Step 4: Simplify right side
   2,465.45x = 3,345,194.54
5. Step 5: Solve for x
   x = 3,345,194.54/2,465.45
6. Step 6: Final answer
   x = 1,356.83