Finding the Fourth Proportional to 2,042.31, 3,063.05 and 581.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.31 : 3,063.05 = 581.61 : x
2. Step 2: Convert to fraction form
   2,042.31/3,063.05 = 581.61/x
3. Step 3: Cross multiply
   2,042.31x = 3,063.05 × 581.61
4. Step 4: Simplify right side
   2,042.31x = 1,781,500.51
5. Step 5: Solve for x
   x = 1,781,500.51/2,042.31
6. Step 6: Final answer
   x = 872.30