Finding the Fourth Proportional to 2,563.76, 3,537.86 and 1,515.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,563.76 : 3,537.86 = 1,515.62 : x
2. Step 2: Convert to fraction form
   2,563.76/3,537.86 = 1,515.62/x
3. Step 3: Cross multiply
   2,563.76x = 3,537.86 × 1,515.62
4. Step 4: Simplify right side
   2,563.76x = 5,362,051.37
5. Step 5: Solve for x
   x = 5,362,051.37/2,563.76
6. Step 6: Final answer
   x = 2,091.48