Finding the Fourth Proportional to 2,563.56, 3,537.72 and 1,515.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,563.56 : 3,537.72 = 1,515.60 : x
2. Step 2: Convert to fraction form
   2,563.56/3,537.72 = 1,515.60/x
3. Step 3: Cross multiply
   2,563.56x = 3,537.72 × 1,515.60
4. Step 4: Simplify right side
   2,563.56x = 5,361,768.43
5. Step 5: Solve for x
   x = 5,361,768.43/2,563.56
6. Step 6: Final answer
   x = 2,091.53