Finding the Fourth Proportional to 3,449.74, 5,172.78 and 2,354.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,449.74 : 5,172.78 = 2,354.42 : x
2. Step 2: Convert to fraction form
   3,449.74/5,172.78 = 2,354.42/x
3. Step 3: Cross multiply
   3,449.74x = 5,172.78 × 2,354.42
4. Step 4: Simplify right side
   3,449.74x = 12,178,896.69
5. Step 5: Solve for x
   x = 12,178,896.69/3,449.74
6. Step 6: Final answer
   x = 3,530.38