Finding the Fourth Proportional to 2,111.98, 3,167.97 and 958.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.98 : 3,167.97 = 958.54 : x
2. Step 2: Convert to fraction form
   2,111.98/3,167.97 = 958.54/x
3. Step 3: Cross multiply
   2,111.98x = 3,167.97 × 958.54
4. Step 4: Simplify right side
   2,111.98x = 3,036,625.96
5. Step 5: Solve for x
   x = 3,036,625.96/2,111.98
6. Step 6: Final answer
   x = 1,437.81