Finding the Fourth Proportional to 3,628.58, 5,007.16 and 2,056.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,628.58 : 5,007.16 = 2,056.78 : x
2. Step 2: Convert to fraction form
   3,628.58/5,007.16 = 2,056.78/x
3. Step 3: Cross multiply
   3,628.58x = 5,007.16 × 2,056.78
4. Step 4: Simplify right side
   3,628.58x = 10,298,626.54
5. Step 5: Solve for x
   x = 10,298,626.54/3,628.58
6. Step 6: Final answer
   x = 2,838.20