Finding the Fourth Proportional to 2,621.73, 3,618.05 and 1,442.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.73 : 3,618.05 = 1,442.82 : x
2. Step 2: Convert to fraction form
   2,621.73/3,618.05 = 1,442.82/x
3. Step 3: Cross multiply
   2,621.73x = 3,618.05 × 1,442.82
4. Step 4: Simplify right side
   2,621.73x = 5,220,194.90
5. Step 5: Solve for x
   x = 5,220,194.90/2,621.73
6. Step 6: Final answer
   x = 1,991.13