Finding the Fourth Proportional to 2,483.28, 3,426.70 and 1,420.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.28 : 3,426.70 = 1,420.82 : x
2. Step 2: Convert to fraction form
   2,483.28/3,426.70 = 1,420.82/x
3. Step 3: Cross multiply
   2,483.28x = 3,426.70 × 1,420.82
4. Step 4: Simplify right side
   2,483.28x = 4,868,723.89
5. Step 5: Solve for x
   x = 4,868,723.89/2,483.28
6. Step 6: Final answer
   x = 1,960.60