Finding the Fourth Proportional to 1,510.53, 2,262.15 and 859.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.53 : 2,262.15 = 859.29 : x
2. Step 2: Convert to fraction form
   1,510.53/2,262.15 = 859.29/x
3. Step 3: Cross multiply
   1,510.53x = 2,262.15 × 859.29
4. Step 4: Simplify right side
   1,510.53x = 1,943,842.87
5. Step 5: Solve for x
   x = 1,943,842.87/1,510.53
6. Step 6: Final answer
   x = 1,286.86