Finding the Fourth Proportional to 2,042.69, 2,818.87 and 1,158.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.69 : 2,818.87 = 1,158.48 : x
2. Step 2: Convert to fraction form
   2,042.69/2,818.87 = 1,158.48/x
3. Step 3: Cross multiply
   2,042.69x = 2,818.87 × 1,158.48
4. Step 4: Simplify right side
   2,042.69x = 3,265,601.62
5. Step 5: Solve for x
   x = 3,265,601.62/2,042.69
6. Step 6: Final answer
   x = 1,598.68