Finding the Fourth Proportional to 1,856.38, 2,561.06 and 1,227.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.38 : 2,561.06 = 1,227.24 : x
2. Step 2: Convert to fraction form
   1,856.38/2,561.06 = 1,227.24/x
3. Step 3: Cross multiply
   1,856.38x = 2,561.06 × 1,227.24
4. Step 4: Simplify right side
   1,856.38x = 3,143,035.27
5. Step 5: Solve for x
   x = 3,143,035.27/1,856.38
6. Step 6: Final answer
   x = 1,693.10