Finding the Fourth Proportional to 3,521.86, 4,855.76 and 2,576.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,521.86 : 4,855.76 = 2,576.89 : x
2. Step 2: Convert to fraction form
   3,521.86/4,855.76 = 2,576.89/x
3. Step 3: Cross multiply
   3,521.86x = 4,855.76 × 2,576.89
4. Step 4: Simplify right side
   3,521.86x = 12,512,722.22
5. Step 5: Solve for x
   x = 12,512,722.22/3,521.86
6. Step 6: Final answer
   x = 3,552.88