Finding the Fourth Proportional to 2,856.10, 4,285.76 and 1,125.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,856.10 : 4,285.76 = 1,125.94 : x
2. Step 2: Convert to fraction form
   2,856.10/4,285.76 = 1,125.94/x
3. Step 3: Cross multiply
   2,856.10x = 4,285.76 × 1,125.94
4. Step 4: Simplify right side
   2,856.10x = 4,825,508.61
5. Step 5: Solve for x
   x = 4,825,508.61/2,856.10
6. Step 6: Final answer
   x = 1,689.54