Finding the Fourth Proportional to 2,608.40, 3,599.60 and 1,429.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.40 : 3,599.60 = 1,429.53 : x
2. Step 2: Convert to fraction form
   2,608.40/3,599.60 = 1,429.53/x
3. Step 3: Cross multiply
   2,608.40x = 3,599.60 × 1,429.53
4. Step 4: Simplify right side
   2,608.40x = 5,145,729.04
5. Step 5: Solve for x
   x = 5,145,729.04/2,608.40
6. Step 6: Final answer
   x = 1,972.76