Finding the Fourth Proportional to 3,873.65, 5,342.55 and 2,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,873.65 : 5,342.55 = 2,548.72 : x
2. Step 2: Convert to fraction form
   3,873.65/5,342.55 = 2,548.72/x
3. Step 3: Cross multiply
   3,873.65x = 5,342.55 × 2,548.72
4. Step 4: Simplify right side
   3,873.65x = 13,616,664.04
5. Step 5: Solve for x
   x = 13,616,664.04/3,873.65
6. Step 6: Final answer
   x = 3,515.20