Finding the Fourth Proportional to 3,819.10, 5,730.28 and 1,628.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,819.10 : 5,730.28 = 1,628.86 : x
2. Step 2: Convert to fraction form
   3,819.10/5,730.28 = 1,628.86/x
3. Step 3: Cross multiply
   3,819.10x = 5,730.28 × 1,628.86
4. Step 4: Simplify right side
   3,819.10x = 9,333,823.88
5. Step 5: Solve for x
   x = 9,333,823.88/3,819.10
6. Step 6: Final answer
   x = 2,443.99