Finding the Fourth Proportional to 2,952.57, 4,429.05 and 872.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,952.57 : 4,429.05 = 872.73 : x
2. Step 2: Convert to fraction form
   2,952.57/4,429.05 = 872.73/x
3. Step 3: Cross multiply
   2,952.57x = 4,429.05 × 872.73
4. Step 4: Simplify right side
   2,952.57x = 3,865,364.81
5. Step 5: Solve for x
   x = 3,865,364.81/2,952.57
6. Step 6: Final answer
   x = 1,309.15