Finding the Fourth Proportional to 2,957.43, 4,435.87 and 877.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,957.43 : 4,435.87 = 877.35 : x
2. Step 2: Convert to fraction form
   2,957.43/4,435.87 = 877.35/x
3. Step 3: Cross multiply
   2,957.43x = 4,435.87 × 877.35
4. Step 4: Simplify right side
   2,957.43x = 3,891,810.54
5. Step 5: Solve for x
   x = 3,891,810.54/2,957.43
6. Step 6: Final answer
   x = 1,315.94