Finding the Fourth Proportional to 2,452.34, 3,678.72 and 2,119.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.34 : 3,678.72 = 2,119.94 : x
2. Step 2: Convert to fraction form
   2,452.34/3,678.72 = 2,119.94/x
3. Step 3: Cross multiply
   2,452.34x = 3,678.72 × 2,119.94
4. Step 4: Simplify right side
   2,452.34x = 7,798,665.68
5. Step 5: Solve for x
   x = 7,798,665.68/2,452.34
6. Step 6: Final answer
   x = 3,180.09