Finding the Fourth Proportional to 2,957.27, 4,436.55 and 1,009.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,957.27 : 4,436.55 = 1,009.40 : x
2. Step 2: Convert to fraction form
   2,957.27/4,436.55 = 1,009.40/x
3. Step 3: Cross multiply
   2,957.27x = 4,436.55 × 1,009.40
4. Step 4: Simplify right side
   2,957.27x = 4,478,231.39
5. Step 5: Solve for x
   x = 4,478,231.39/2,957.27
6. Step 6: Final answer
   x = 1,514.32