Finding the Fourth Proportional to 2,042.78, 3,064.30 and 581.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.78 : 3,064.30 = 581.94 : x
2. Step 2: Convert to fraction form
   2,042.78/3,064.30 = 581.94/x
3. Step 3: Cross multiply
   2,042.78x = 3,064.30 × 581.94
4. Step 4: Simplify right side
   2,042.78x = 1,783,237.29
5. Step 5: Solve for x
   x = 1,783,237.29/2,042.78
6. Step 6: Final answer
   x = 872.95