Finding the Fourth Proportional to 1,773.98, 2,661.42 and 850.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.98 : 2,661.42 = 850.25 : x
2. Step 2: Convert to fraction form
   1,773.98/2,661.42 = 850.25/x
3. Step 3: Cross multiply
   1,773.98x = 2,661.42 × 850.25
4. Step 4: Simplify right side
   1,773.98x = 2,262,859.05
5. Step 5: Solve for x
   x = 2,262,859.05/1,773.98
6. Step 6: Final answer
   x = 1,275.59