Finding the Fourth Proportional to 2,957.08, 4,436.57 and 877.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,957.08 : 4,436.57 = 877.10 : x
2. Step 2: Convert to fraction form
   2,957.08/4,436.57 = 877.10/x
3. Step 3: Cross multiply
   2,957.08x = 4,436.57 × 877.10
4. Step 4: Simplify right side
   2,957.08x = 3,891,315.55
5. Step 5: Solve for x
   x = 3,891,315.55/2,957.08
6. Step 6: Final answer
   x = 1,315.93