Finding the Fourth Proportional to 2,946.25, 4,418.29 and 865.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,946.25 : 4,418.29 = 865.72 : x
2. Step 2: Convert to fraction form
   2,946.25/4,418.29 = 865.72/x
3. Step 3: Cross multiply
   2,946.25x = 4,418.29 × 865.72
4. Step 4: Simplify right side
   2,946.25x = 3,825,002.02
5. Step 5: Solve for x
   x = 3,825,002.02/2,946.25
6. Step 6: Final answer
   x = 1,298.26