Finding the Fourth Proportional to 1,459.89, 2,015.25 and 1,040.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,459.89 : 2,015.25 = 1,040.31 : x
2. Step 2: Convert to fraction form
   1,459.89/2,015.25 = 1,040.31/x
3. Step 3: Cross multiply
   1,459.89x = 2,015.25 × 1,040.31
4. Step 4: Simplify right side
   1,459.89x = 2,096,484.73
5. Step 5: Solve for x
   x = 2,096,484.73/1,459.89
6. Step 6: Final answer
   x = 1,436.06