Finding the Fourth Proportional to 3,872.96, 5,345.52 and 2,546.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,872.96 : 5,345.52 = 2,546.79 : x
2. Step 2: Convert to fraction form
   3,872.96/5,345.52 = 2,546.79/x
3. Step 3: Cross multiply
   3,872.96x = 5,345.52 × 2,546.79
4. Step 4: Simplify right side
   3,872.96x = 13,613,916.88
5. Step 5: Solve for x
   x = 13,613,916.88/3,872.96
6. Step 6: Final answer
   x = 3,515.12