Finding the Fourth Proportional to 2,290.28, 3,435.21 and 1,119.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.28 : 3,435.21 = 1,119.83 : x
2. Step 2: Convert to fraction form
   2,290.28/3,435.21 = 1,119.83/x
3. Step 3: Cross multiply
   2,290.28x = 3,435.21 × 1,119.83
4. Step 4: Simplify right side
   2,290.28x = 3,846,834.04
5. Step 5: Solve for x
   x = 3,846,834.04/2,290.28
6. Step 6: Final answer
   x = 1,679.64