Finding the Fourth Proportional to 2,949.99, 4,424.27 and 869.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,949.99 : 4,424.27 = 869.43 : x
2. Step 2: Convert to fraction form
   2,949.99/4,424.27 = 869.43/x
3. Step 3: Cross multiply
   2,949.99x = 4,424.27 × 869.43
4. Step 4: Simplify right side
   2,949.99x = 3,846,585.31
5. Step 5: Solve for x
   x = 3,846,585.31/2,949.99
6. Step 6: Final answer
   x = 1,303.93