Finding the Fourth Proportional to 2,707.33, 4,057.72 and 1,318.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,707.33 : 4,057.72 = 1,318.58 : x
2. Step 2: Convert to fraction form
   2,707.33/4,057.72 = 1,318.58/x
3. Step 3: Cross multiply
   2,707.33x = 4,057.72 × 1,318.58
4. Step 4: Simplify right side
   2,707.33x = 5,350,438.58
5. Step 5: Solve for x
   x = 5,350,438.58/2,707.33
6. Step 6: Final answer
   x = 1,976.28