Finding the Fourth Proportional to 2,443.05, 3,664.75 and 982.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.05 : 3,664.75 = 982.21 : x
2. Step 2: Convert to fraction form
   2,443.05/3,664.75 = 982.21/x
3. Step 3: Cross multiply
   2,443.05x = 3,664.75 × 982.21
4. Step 4: Simplify right side
   2,443.05x = 3,599,535.77
5. Step 5: Solve for x
   x = 3,599,535.77/2,443.05
6. Step 6: Final answer
   x = 1,473.38