Finding the Fourth Proportional to 2,608.42, 3,599.70 and 1,429.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.42 : 3,599.70 = 1,429.57 : x
2. Step 2: Convert to fraction form
   2,608.42/3,599.70 = 1,429.57/x
3. Step 3: Cross multiply
   2,608.42x = 3,599.70 × 1,429.57
4. Step 4: Simplify right side
   2,608.42x = 5,146,023.13
5. Step 5: Solve for x
   x = 5,146,023.13/2,608.42
6. Step 6: Final answer
   x = 1,972.85