Finding the Fourth Proportional to 2,040.34, 3,060.56 and 579.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.34 : 3,060.56 = 579.46 : x
2. Step 2: Convert to fraction form
   2,040.34/3,060.56 = 579.46/x
3. Step 3: Cross multiply
   2,040.34x = 3,060.56 × 579.46
4. Step 4: Simplify right side
   2,040.34x = 1,773,472.10
5. Step 5: Solve for x
   x = 1,773,472.10/2,040.34
6. Step 6: Final answer
   x = 869.20