Finding the Fourth Proportional to 2,886.98, 4,329.59 and 1,243.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.98 : 4,329.59 = 1,243.22 : x
2. Step 2: Convert to fraction form
   2,886.98/4,329.59 = 1,243.22/x
3. Step 3: Cross multiply
   2,886.98x = 4,329.59 × 1,243.22
4. Step 4: Simplify right side
   2,886.98x = 5,382,605.02
5. Step 5: Solve for x
   x = 5,382,605.02/2,886.98
6. Step 6: Final answer
   x = 1,864.44