Finding the Fourth Proportional to 2,042.18, 3,062.85 and 581.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.18 : 3,062.85 = 581.30 : x
2. Step 2: Convert to fraction form
   2,042.18/3,062.85 = 581.30/x
3. Step 3: Cross multiply
   2,042.18x = 3,062.85 × 581.30
4. Step 4: Simplify right side
   2,042.18x = 1,780,434.71
5. Step 5: Solve for x
   x = 1,780,434.71/2,042.18
6. Step 6: Final answer
   x = 871.83