Finding the Fourth Proportional to 2,244.69, 3,365.71 and 858.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,244.69 : 3,365.71 = 858.13 : x
2. Step 2: Convert to fraction form
   2,244.69/3,365.71 = 858.13/x
3. Step 3: Cross multiply
   2,244.69x = 3,365.71 × 858.13
4. Step 4: Simplify right side
   2,244.69x = 2,888,216.72
5. Step 5: Solve for x
   x = 2,888,216.72/2,244.69
6. Step 6: Final answer
   x = 1,286.69