Finding the Fourth Proportional to 2,482.57, 3,425.72 and 1,420.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,482.57 : 3,425.72 = 1,420.12 : x
2. Step 2: Convert to fraction form
   2,482.57/3,425.72 = 1,420.12/x
3. Step 3: Cross multiply
   2,482.57x = 3,425.72 × 1,420.12
4. Step 4: Simplify right side
   2,482.57x = 4,864,933.49
5. Step 5: Solve for x
   x = 4,864,933.49/2,482.57
6. Step 6: Final answer
   x = 1,959.64