Finding the Fourth Proportional to 2,042.39, 2,818.46 and 1,146.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.39 : 2,818.46 = 1,146.22 : x
2. Step 2: Convert to fraction form
   2,042.39/2,818.46 = 1,146.22/x
3. Step 3: Cross multiply
   2,042.39x = 2,818.46 × 1,146.22
4. Step 4: Simplify right side
   2,042.39x = 3,230,571.04
5. Step 5: Solve for x
   x = 3,230,571.04/2,042.39
6. Step 6: Final answer
   x = 1,581.76