Finding the Fourth Proportional to 5,429.60, 8,145.48 and 2,508.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429.60 : 8,145.48 = 2,508.56 : x
2. Step 2: Convert to fraction form
   5,429.60/8,145.48 = 2,508.56/x
3. Step 3: Cross multiply
   5,429.60x = 8,145.48 × 2,508.56
4. Step 4: Simplify right side
   5,429.60x = 20,433,425.31
5. Step 5: Solve for x
   x = 20,433,425.31/5,429.60
6. Step 6: Final answer
   x = 3,763.34