Finding the Fourth Proportional to 2,483.68, 3,428.98 and 1,645.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.68 : 3,428.98 = 1,645.10 : x
2. Step 2: Convert to fraction form
   2,483.68/3,428.98 = 1,645.10/x
3. Step 3: Cross multiply
   2,483.68x = 3,428.98 × 1,645.10
4. Step 4: Simplify right side
   2,483.68x = 5,640,993.74
5. Step 5: Solve for x
   x = 5,640,993.74/2,483.68
6. Step 6: Final answer
   x = 2,271.23