Finding the Fourth Proportional to 2,865.31, 4,297.86 and 1,015.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,865.31 : 4,297.86 = 1,015.98 : x
2. Step 2: Convert to fraction form
   2,865.31/4,297.86 = 1,015.98/x
3. Step 3: Cross multiply
   2,865.31x = 4,297.86 × 1,015.98
4. Step 4: Simplify right side
   2,865.31x = 4,366,523.69
5. Step 5: Solve for x
   x = 4,366,523.69/2,865.31
6. Step 6: Final answer
   x = 1,523.93