Finding the Fourth Proportional to 2,485.53, 3,429.98 and 1,351.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.53 : 3,429.98 = 1,351.18 : x
2. Step 2: Convert to fraction form
   2,485.53/3,429.98 = 1,351.18/x
3. Step 3: Cross multiply
   2,485.53x = 3,429.98 × 1,351.18
4. Step 4: Simplify right side
   2,485.53x = 4,634,520.38
5. Step 5: Solve for x
   x = 4,634,520.38/2,485.53
6. Step 6: Final answer
   x = 1,864.60