Finding the Fourth Proportional to 2,483.95, 3,428.02 and 1,643.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.95 : 3,428.02 = 1,643.19 : x
2. Step 2: Convert to fraction form
   2,483.95/3,428.02 = 1,643.19/x
3. Step 3: Cross multiply
   2,483.95x = 3,428.02 × 1,643.19
4. Step 4: Simplify right side
   2,483.95x = 5,632,906.31
5. Step 5: Solve for x
   x = 5,632,906.31/2,483.95
6. Step 6: Final answer
   x = 2,267.72