Finding the Fourth Proportional to 3,919.56, 5,407.94 and 2,523.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,919.56 : 5,407.94 = 2,523.16 : x
2. Step 2: Convert to fraction form
   3,919.56/5,407.94 = 2,523.16/x
3. Step 3: Cross multiply
   3,919.56x = 5,407.94 × 2,523.16
4. Step 4: Simplify right side
   3,919.56x = 13,645,097.89
5. Step 5: Solve for x
   x = 13,645,097.89/3,919.56
6. Step 6: Final answer
   x = 3,481.28