Finding the Fourth Proportional to 2,042.43, 2,818.80 and 1,158.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.43 : 2,818.80 = 1,158.30 : x
2. Step 2: Convert to fraction form
   2,042.43/2,818.80 = 1,158.30/x
3. Step 3: Cross multiply
   2,042.43x = 2,818.80 × 1,158.30
4. Step 4: Simplify right side
   2,042.43x = 3,265,016.04
5. Step 5: Solve for x
   x = 3,265,016.04/2,042.43
6. Step 6: Final answer
   x = 1,598.59