Finding the Fourth Proportional to 2,950.43, 4,424.12 and 870.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,950.43 : 4,424.12 = 870.17 : x
2. Step 2: Convert to fraction form
   2,950.43/4,424.12 = 870.17/x
3. Step 3: Cross multiply
   2,950.43x = 4,424.12 × 870.17
4. Step 4: Simplify right side
   2,950.43x = 3,849,736.50
5. Step 5: Solve for x
   x = 3,849,736.50/2,950.43
6. Step 6: Final answer
   x = 1,304.81