Finding the Fourth Proportional to 2,758.55, 3,806.78 and 1,563.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.55 : 3,806.78 = 1,563.53 : x
2. Step 2: Convert to fraction form
   2,758.55/3,806.78 = 1,563.53/x
3. Step 3: Cross multiply
   2,758.55x = 3,806.78 × 1,563.53
4. Step 4: Simplify right side
   2,758.55x = 5,951,987.88
5. Step 5: Solve for x
   x = 5,951,987.88/2,758.55
6. Step 6: Final answer
   x = 2,157.65