Finding the Fourth Proportional to 1,863.51, 2,571.25 and 1,200.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,863.51 : 2,571.25 = 1,200.27 : x
2. Step 2: Convert to fraction form
   1,863.51/2,571.25 = 1,200.27/x
3. Step 3: Cross multiply
   1,863.51x = 2,571.25 × 1,200.27
4. Step 4: Simplify right side
   1,863.51x = 3,086,194.24
5. Step 5: Solve for x
   x = 3,086,194.24/1,863.51
6. Step 6: Final answer
   x = 1,656.12