Finding the Fourth Proportional to 2,290.85, 3,436.59 and 730.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.85 : 3,436.59 = 730.69 : x
2. Step 2: Convert to fraction form
   2,290.85/3,436.59 = 730.69/x
3. Step 3: Cross multiply
   2,290.85x = 3,436.59 × 730.69
4. Step 4: Simplify right side
   2,290.85x = 2,511,076.10
5. Step 5: Solve for x
   x = 2,511,076.10/2,290.85
6. Step 6: Final answer
   x = 1,096.13