Finding the Fourth Proportional to 2,358.57, 3,255.90 and 1,698.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,358.57 : 3,255.90 = 1,698.69 : x
2. Step 2: Convert to fraction form
   2,358.57/3,255.90 = 1,698.69/x
3. Step 3: Cross multiply
   2,358.57x = 3,255.90 × 1,698.69
4. Step 4: Simplify right side
   2,358.57x = 5,530,764.77
5. Step 5: Solve for x
   x = 5,530,764.77/2,358.57
6. Step 6: Final answer
   x = 2,344.97