Finding the Fourth Proportional to 2,290.43, 3,160.59 and 1,394.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.43 : 3,160.59 = 1,394.57 : x
2. Step 2: Convert to fraction form
   2,290.43/3,160.59 = 1,394.57/x
3. Step 3: Cross multiply
   2,290.43x = 3,160.59 × 1,394.57
4. Step 4: Simplify right side
   2,290.43x = 4,407,660.66
5. Step 5: Solve for x
   x = 4,407,660.66/2,290.43
6. Step 6: Final answer
   x = 1,924.38