Finding the Fourth Proportional to 2,440.82, 3,368.30 and 1,321.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,440.82 : 3,368.30 = 1,321.74 : x
2. Step 2: Convert to fraction form
   2,440.82/3,368.30 = 1,321.74/x
3. Step 3: Cross multiply
   2,440.82x = 3,368.30 × 1,321.74
4. Step 4: Simplify right side
   2,440.82x = 4,452,016.84
5. Step 5: Solve for x
   x = 4,452,016.84/2,440.82
6. Step 6: Final answer
   x = 1,823.98