Finding the Fourth Proportional to 2,485.40, 3,727.98 and 730.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.40 : 3,727.98 = 730.34 : x
2. Step 2: Convert to fraction form
   2,485.40/3,727.98 = 730.34/x
3. Step 3: Cross multiply
   2,485.40x = 3,727.98 × 730.34
4. Step 4: Simplify right side
   2,485.40x = 2,722,674.27
5. Step 5: Solve for x
   x = 2,722,674.27/2,485.40
6. Step 6: Final answer
   x = 1,095.47