Finding the Fourth Proportional to 1,479.94, 2,215.96 and 958.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.94 : 2,215.96 = 958.43 : x
2. Step 2: Convert to fraction form
   1,479.94/2,215.96 = 958.43/x
3. Step 3: Cross multiply
   1,479.94x = 2,215.96 × 958.43
4. Step 4: Simplify right side
   1,479.94x = 2,123,845.69
5. Step 5: Solve for x
   x = 2,123,845.69/1,479.94
6. Step 6: Final answer
   x = 1,435.09