Finding the Fourth Proportional to 2,845.82, 4,270.06 and 1,286.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,845.82 : 4,270.06 = 1,286.28 : x
2. Step 2: Convert to fraction form
   2,845.82/4,270.06 = 1,286.28/x
3. Step 3: Cross multiply
   2,845.82x = 4,270.06 × 1,286.28
4. Step 4: Simplify right side
   2,845.82x = 5,492,492.78
5. Step 5: Solve for x
   x = 5,492,492.78/2,845.82
6. Step 6: Final answer
   x = 1,930.02