Finding the Fourth Proportional to 2,957.92, 4,435.51 and 1,057.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,957.92 : 4,435.51 = 1,057.62 : x
2. Step 2: Convert to fraction form
   2,957.92/4,435.51 = 1,057.62/x
3. Step 3: Cross multiply
   2,957.92x = 4,435.51 × 1,057.62
4. Step 4: Simplify right side
   2,957.92x = 4,691,081.35
5. Step 5: Solve for x
   x = 4,691,081.35/2,957.92
6. Step 6: Final answer
   x = 1,585.94