Finding the Fourth Proportional to 3,353.72, 5,011.30 and 2,558.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,353.72 : 5,011.30 = 2,558.72 : x
2. Step 2: Convert to fraction form
   3,353.72/5,011.30 = 2,558.72/x
3. Step 3: Cross multiply
   3,353.72x = 5,011.30 × 2,558.72
4. Step 4: Simplify right side
   3,353.72x = 12,822,513.54
5. Step 5: Solve for x
   x = 12,822,513.54/3,353.72
6. Step 6: Final answer
   x = 3,823.37