Finding the Fourth Proportional to 2,620.98, 3,616.75 and 1,626.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.98 : 3,616.75 = 1,626.07 : x
2. Step 2: Convert to fraction form
   2,620.98/3,616.75 = 1,626.07/x
3. Step 3: Cross multiply
   2,620.98x = 3,616.75 × 1,626.07
4. Step 4: Simplify right side
   2,620.98x = 5,881,085.90
5. Step 5: Solve for x
   x = 5,881,085.90/2,620.98
6. Step 6: Final answer
   x = 2,243.85