Finding the Fourth Proportional to 2,057.18, 2,836.78 and 1,459.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.18 : 2,836.78 = 1,459.40 : x
2. Step 2: Convert to fraction form
   2,057.18/2,836.78 = 1,459.40/x
3. Step 3: Cross multiply
   2,057.18x = 2,836.78 × 1,459.40
4. Step 4: Simplify right side
   2,057.18x = 4,139,996.73
5. Step 5: Solve for x
   x = 4,139,996.73/2,057.18
6. Step 6: Final answer
   x = 2,012.46