Finding the Fourth Proportional to 2,291.42, 3,431.78 and 1,673.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.42 : 3,431.78 = 1,673.59 : x
2. Step 2: Convert to fraction form
   2,291.42/3,431.78 = 1,673.59/x
3. Step 3: Cross multiply
   2,291.42x = 3,431.78 × 1,673.59
4. Step 4: Simplify right side
   2,291.42x = 5,743,392.69
5. Step 5: Solve for x
   x = 5,743,392.69/2,291.42
6. Step 6: Final answer
   x = 2,506.48