Finding the Fourth Proportional to 2,859.30, 4,289.56 and 1,010.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,859.30 : 4,289.56 = 1,010.27 : x
2. Step 2: Convert to fraction form
   2,859.30/4,289.56 = 1,010.27/x
3. Step 3: Cross multiply
   2,859.30x = 4,289.56 × 1,010.27
4. Step 4: Simplify right side
   2,859.30x = 4,333,621.98
5. Step 5: Solve for x
   x = 4,333,621.98/2,859.30
6. Step 6: Final answer
   x = 1,515.62