Finding the Fourth Proportional to 3,870.12, 5,809.28 and 2,410.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.12 : 5,809.28 = 2,410.30 : x
2. Step 2: Convert to fraction form
   3,870.12/5,809.28 = 2,410.30/x
3. Step 3: Cross multiply
   3,870.12x = 5,809.28 × 2,410.30
4. Step 4: Simplify right side
   3,870.12x = 14,002,107.58
5. Step 5: Solve for x
   x = 14,002,107.58/3,870.12
6. Step 6: Final answer
   x = 3,618.00