Finding the Fourth Proportional to 3,554.91, 5,331.56 and 958.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,554.91 : 5,331.56 = 958.05 : x
2. Step 2: Convert to fraction form
   3,554.91/5,331.56 = 958.05/x
3. Step 3: Cross multiply
   3,554.91x = 5,331.56 × 958.05
4. Step 4: Simplify right side
   3,554.91x = 5,107,896.27
5. Step 5: Solve for x
   x = 5,107,896.27/3,554.91
6. Step 6: Final answer
   x = 1,436.86