Finding the Fourth Proportional to 2,483.10, 3,426.54 and 1,420.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.10 : 3,426.54 = 1,420.80 : x
2. Step 2: Convert to fraction form
   2,483.10/3,426.54 = 1,420.80/x
3. Step 3: Cross multiply
   2,483.10x = 3,426.54 × 1,420.80
4. Step 4: Simplify right side
   2,483.10x = 4,868,428.03
5. Step 5: Solve for x
   x = 4,868,428.03/2,483.10
6. Step 6: Final answer
   x = 1,960.63