Finding the Fourth Proportional to 2,040.88, 3,061.47 and 580.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.88 : 3,061.47 = 580.15 : x
2. Step 2: Convert to fraction form
   2,040.88/3,061.47 = 580.15/x
3. Step 3: Cross multiply
   2,040.88x = 3,061.47 × 580.15
4. Step 4: Simplify right side
   2,040.88x = 1,776,111.82
5. Step 5: Solve for x
   x = 1,776,111.82/2,040.88
6. Step 6: Final answer
   x = 870.27