Finding the Fourth Proportional to 2,643.98, 3,960.83 and 1,410.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.98 : 3,960.83 = 1,410.98 : x
2. Step 2: Convert to fraction form
   2,643.98/3,960.83 = 1,410.98/x
3. Step 3: Cross multiply
   2,643.98x = 3,960.83 × 1,410.98
4. Step 4: Simplify right side
   2,643.98x = 5,588,635.64
5. Step 5: Solve for x
   x = 5,588,635.64/2,643.98
6. Step 6: Final answer
   x = 2,113.72