Finding the Fourth Proportional to 2,054.38, 2,835.30 and 1,158.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.38 : 2,835.30 = 1,158.30 : x
2. Step 2: Convert to fraction form
   2,054.38/2,835.30 = 1,158.30/x
3. Step 3: Cross multiply
   2,054.38x = 2,835.30 × 1,158.30
4. Step 4: Simplify right side
   2,054.38x = 3,284,112.92
5. Step 5: Solve for x
   x = 3,284,112.92/2,054.38
6. Step 6: Final answer
   x = 1,598.59