Finding the Fourth Proportional to 2,290.42, 3,436.71 and 829.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.42 : 3,436.71 = 829.18 : x
2. Step 2: Convert to fraction form
   2,290.42/3,436.71 = 829.18/x
3. Step 3: Cross multiply
   2,290.42x = 3,436.71 × 829.18
4. Step 4: Simplify right side
   2,290.42x = 2,849,639.50
5. Step 5: Solve for x
   x = 2,849,639.50/2,290.42
6. Step 6: Final answer
   x = 1,244.16