Finding the Fourth Proportional to 2,621.93, 3,618.48 and 1,443.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.93 : 3,618.48 = 1,443.22 : x
2. Step 2: Convert to fraction form
   2,621.93/3,618.48 = 1,443.22/x
3. Step 3: Cross multiply
   2,621.93x = 3,618.48 × 1,443.22
4. Step 4: Simplify right side
   2,621.93x = 5,222,262.71
5. Step 5: Solve for x
   x = 5,222,262.71/2,621.93
6. Step 6: Final answer
   x = 1,991.76