Finding the Fourth Proportional to 1,856.96, 2,562.72 and 1,028.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.96 : 2,562.72 = 1,028.96 : x
2. Step 2: Convert to fraction form
   1,856.96/2,562.72 = 1,028.96/x
3. Step 3: Cross multiply
   1,856.96x = 2,562.72 × 1,028.96
4. Step 4: Simplify right side
   1,856.96x = 2,636,936.37
5. Step 5: Solve for x
   x = 2,636,936.37/1,856.96
6. Step 6: Final answer
   x = 1,420.03