Finding the Fourth Proportional to 2,889.38, 4,331.36 and 1,158.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,889.38 : 4,331.36 = 1,158.14 : x
2. Step 2: Convert to fraction form
   2,889.38/4,331.36 = 1,158.14/x
3. Step 3: Cross multiply
   2,889.38x = 4,331.36 × 1,158.14
4. Step 4: Simplify right side
   2,889.38x = 5,016,321.27
5. Step 5: Solve for x
   x = 5,016,321.27/2,889.38
6. Step 6: Final answer
   x = 1,736.12