Finding the Fourth Proportional to 2,643.60, 3,960.27 and 1,410.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.60 : 3,960.27 = 1,410.60 : x
2. Step 2: Convert to fraction form
   2,643.60/3,960.27 = 1,410.60/x
3. Step 3: Cross multiply
   2,643.60x = 3,960.27 × 1,410.60
4. Step 4: Simplify right side
   2,643.60x = 5,586,356.86
5. Step 5: Solve for x
   x = 5,586,356.86/2,643.60
6. Step 6: Final answer
   x = 2,113.16