Finding the Fourth Proportional to 2,608.71, 3,600.12 and 1,429.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.71 : 3,600.12 = 1,429.78 : x
2. Step 2: Convert to fraction form
   2,608.71/3,600.12 = 1,429.78/x
3. Step 3: Cross multiply
   2,608.71x = 3,600.12 × 1,429.78
4. Step 4: Simplify right side
   2,608.71x = 5,147,387.71
5. Step 5: Solve for x
   x = 5,147,387.71/2,608.71
6. Step 6: Final answer
   x = 1,973.15