Finding the Fourth Proportional to 2,485.16, 3,728.94 and 1,185.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.16 : 3,728.94 = 1,185.08 : x
2. Step 2: Convert to fraction form
   2,485.16/3,728.94 = 1,185.08/x
3. Step 3: Cross multiply
   2,485.16x = 3,728.94 × 1,185.08
4. Step 4: Simplify right side
   2,485.16x = 4,419,092.22
5. Step 5: Solve for x
   x = 4,419,092.22/2,485.16
6. Step 6: Final answer
   x = 1,778.19