Finding the Fourth Proportional to 2,611.46, 3,918.78 and 1,440.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.46 : 3,918.78 = 1,440.96 : x
2. Step 2: Convert to fraction form
   2,611.46/3,918.78 = 1,440.96/x
3. Step 3: Cross multiply
   2,611.46x = 3,918.78 × 1,440.96
4. Step 4: Simplify right side
   2,611.46x = 5,646,805.23
5. Step 5: Solve for x
   x = 5,646,805.23/2,611.46
6. Step 6: Final answer
   x = 2,162.32