Finding the Fourth Proportional to 2,825.72, 4,238.66 and 976.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,825.72 : 4,238.66 = 976.95 : x
2. Step 2: Convert to fraction form
   2,825.72/4,238.66 = 976.95/x
3. Step 3: Cross multiply
   2,825.72x = 4,238.66 × 976.95
4. Step 4: Simplify right side
   2,825.72x = 4,140,958.89
5. Step 5: Solve for x
   x = 4,140,958.89/2,825.72
6. Step 6: Final answer
   x = 1,465.45