Finding the Fourth Proportional to 2,042.81, 2,818.96 and 1,158.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.81 : 2,818.96 = 1,158.29 : x
2. Step 2: Convert to fraction form
   2,042.81/2,818.96 = 1,158.29/x
3. Step 3: Cross multiply
   2,042.81x = 2,818.96 × 1,158.29
4. Step 4: Simplify right side
   2,042.81x = 3,265,173.18
5. Step 5: Solve for x
   x = 3,265,173.18/2,042.81
6. Step 6: Final answer
   x = 1,598.37