Finding the Fourth Proportional to 2,559.74, 3,532.12 and 1,615.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.74 : 3,532.12 = 1,615.16 : x
2. Step 2: Convert to fraction form
   2,559.74/3,532.12 = 1,615.16/x
3. Step 3: Cross multiply
   2,559.74x = 3,532.12 × 1,615.16
4. Step 4: Simplify right side
   2,559.74x = 5,704,943.73
5. Step 5: Solve for x
   x = 5,704,943.73/2,559.74
6. Step 6: Final answer
   x = 2,228.72