Finding the Fourth Proportional to 2,923.71, 4,386.38 and 1,626.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,923.71 : 4,386.38 = 1,626.09 : x
2. Step 2: Convert to fraction form
   2,923.71/4,386.38 = 1,626.09/x
3. Step 3: Cross multiply
   2,923.71x = 4,386.38 × 1,626.09
4. Step 4: Simplify right side
   2,923.71x = 7,132,648.65
5. Step 5: Solve for x
   x = 7,132,648.65/2,923.71
6. Step 6: Final answer
   x = 2,439.59