Finding the Fourth Proportional to 2,912.96, 4,390.94 and 2,429.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,912.96 : 4,390.94 = 2,429.24 : x
2. Step 2: Convert to fraction form
   2,912.96/4,390.94 = 2,429.24/x
3. Step 3: Cross multiply
   2,912.96x = 4,390.94 × 2,429.24
4. Step 4: Simplify right side
   2,912.96x = 10,666,647.09
5. Step 5: Solve for x
   x = 10,666,647.09/2,912.96
6. Step 6: Final answer
   x = 3,661.79