Finding the Fourth Proportional to 2,042.55, 2,818.86 and 1,158.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.55 : 2,818.86 = 1,158.36 : x
2. Step 2: Convert to fraction form
   2,042.55/2,818.86 = 1,158.36/x
3. Step 3: Cross multiply
   2,042.55x = 2,818.86 × 1,158.36
4. Step 4: Simplify right side
   2,042.55x = 3,265,254.67
5. Step 5: Solve for x
   x = 3,265,254.67/2,042.55
6. Step 6: Final answer
   x = 1,598.62