Finding the Fourth Proportional to 2,483.90, 3,426.83 and 1,421.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.90 : 3,426.83 = 1,421.45 : x
2. Step 2: Convert to fraction form
   2,483.90/3,426.83 = 1,421.45/x
3. Step 3: Cross multiply
   2,483.90x = 3,426.83 × 1,421.45
4. Step 4: Simplify right side
   2,483.90x = 4,871,067.50
5. Step 5: Solve for x
   x = 4,871,067.50/2,483.90
6. Step 6: Final answer
   x = 1,961.06