Finding the Fourth Proportional to 3,628.88, 5,007.85 and 2,057.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,628.88 : 5,007.85 = 2,057.07 : x
2. Step 2: Convert to fraction form
   3,628.88/5,007.85 = 2,057.07/x
3. Step 3: Cross multiply
   3,628.88x = 5,007.85 × 2,057.07
4. Step 4: Simplify right side
   3,628.88x = 10,301,492.86
5. Step 5: Solve for x
   x = 10,301,492.86/3,628.88
6. Step 6: Final answer
   x = 2,838.76