Finding the Fourth Proportional to 2,805.39, 3,870.59 and 1,626.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,805.39 : 3,870.59 = 1,626.24 : x
2. Step 2: Convert to fraction form
   2,805.39/3,870.59 = 1,626.24/x
3. Step 3: Cross multiply
   2,805.39x = 3,870.59 × 1,626.24
4. Step 4: Simplify right side
   2,805.39x = 6,294,508.28
5. Step 5: Solve for x
   x = 6,294,508.28/2,805.39
6. Step 6: Final answer
   x = 2,243.72