Finding the Fourth Proportional to 2,040.82, 3,060.52 and 870.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.82 : 3,060.52 = 870.77 : x
2. Step 2: Convert to fraction form
   2,040.82/3,060.52 = 870.77/x
3. Step 3: Cross multiply
   2,040.82x = 3,060.52 × 870.77
4. Step 4: Simplify right side
   2,040.82x = 2,665,014.47
5. Step 5: Solve for x
   x = 2,665,014.47/2,040.82
6. Step 6: Final answer
   x = 1,305.86