Finding the Fourth Proportional to 2,614.60, 3,608.27 and 1,435.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,614.60 : 3,608.27 = 1,435.78 : x
2. Step 2: Convert to fraction form
   2,614.60/3,608.27 = 1,435.78/x
3. Step 3: Cross multiply
   2,614.60x = 3,608.27 × 1,435.78
4. Step 4: Simplify right side
   2,614.60x = 5,180,681.90
5. Step 5: Solve for x
   x = 5,180,681.90/2,614.60
6. Step 6: Final answer
   x = 1,981.44