Finding the Fourth Proportional to 1,856.62, 2,562.94 and 1,227.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.62 : 2,562.94 = 1,227.45 : x
2. Step 2: Convert to fraction form
   1,856.62/2,562.94 = 1,227.45/x
3. Step 3: Cross multiply
   1,856.62x = 2,562.94 × 1,227.45
4. Step 4: Simplify right side
   1,856.62x = 3,145,891.85
5. Step 5: Solve for x
   x = 3,145,891.85/1,856.62
6. Step 6: Final answer
   x = 1,694.42