Finding the Fourth Proportional to 2,447.65, 3,378.27 and 1,563.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.65 : 3,378.27 = 1,563.30 : x
2. Step 2: Convert to fraction form
   2,447.65/3,378.27 = 1,563.30/x
3. Step 3: Cross multiply
   2,447.65x = 3,378.27 × 1,563.30
4. Step 4: Simplify right side
   2,447.65x = 5,281,255.35
5. Step 5: Solve for x
   x = 5,281,255.35/2,447.65
6. Step 6: Final answer
   x = 2,157.68