Finding the Fourth Proportional to 1,856.52, 2,562.04 and 1,017.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.52 : 2,562.04 = 1,017.28 : x
2. Step 2: Convert to fraction form
   1,856.52/2,562.04 = 1,017.28/x
3. Step 3: Cross multiply
   1,856.52x = 2,562.04 × 1,017.28
4. Step 4: Simplify right side
   1,856.52x = 2,606,312.05
5. Step 5: Solve for x
   x = 2,606,312.05/1,856.52
6. Step 6: Final answer
   x = 1,403.87