Finding the Fourth Proportional to 2,485.98, 3,430.82 and 1,424.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.98 : 3,430.82 = 1,424.08 : x
2. Step 2: Convert to fraction form
   2,485.98/3,430.82 = 1,424.08/x
3. Step 3: Cross multiply
   2,485.98x = 3,430.82 × 1,424.08
4. Step 4: Simplify right side
   2,485.98x = 4,885,762.15
5. Step 5: Solve for x
   x = 4,885,762.15/2,485.98
6. Step 6: Final answer
   x = 1,965.33