Finding the Fourth Proportional to 2,485.89, 3,727.92 and 730.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.89 : 3,727.92 = 730.45 : x
2. Step 2: Convert to fraction form
   2,485.89/3,727.92 = 730.45/x
3. Step 3: Cross multiply
   2,485.89x = 3,727.92 × 730.45
4. Step 4: Simplify right side
   2,485.89x = 2,723,066.56
5. Step 5: Solve for x
   x = 2,723,066.56/2,485.89
6. Step 6: Final answer
   x = 1,095.41