Finding the Fourth Proportional to 2,621.47, 3,617.73 and 1,442.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.47 : 3,617.73 = 1,442.59 : x
2. Step 2: Convert to fraction form
   2,621.47/3,617.73 = 1,442.59/x
3. Step 3: Cross multiply
   2,621.47x = 3,617.73 × 1,442.59
4. Step 4: Simplify right side
   2,621.47x = 5,218,901.12
5. Step 5: Solve for x
   x = 5,218,901.12/2,621.47
6. Step 6: Final answer
   x = 1,990.83