Finding the Fourth Proportional to 1,896.99, 2,617.83 and 1,057.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,896.99 : 2,617.83 = 1,057.68 : x
2. Step 2: Convert to fraction form
   1,896.99/2,617.83 = 1,057.68/x
3. Step 3: Cross multiply
   1,896.99x = 2,617.83 × 1,057.68
4. Step 4: Simplify right side
   1,896.99x = 2,768,826.43
5. Step 5: Solve for x
   x = 2,768,826.43/1,896.99
6. Step 6: Final answer
   x = 1,459.59