Finding the Fourth Proportional to 3,705.09, 5,564.69 and 2,148.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,705.09 : 5,564.69 = 2,148.21 : x
2. Step 2: Convert to fraction form
   3,705.09/5,564.69 = 2,148.21/x
3. Step 3: Cross multiply
   3,705.09x = 5,564.69 × 2,148.21
4. Step 4: Simplify right side
   3,705.09x = 11,954,111.96
5. Step 5: Solve for x
   x = 11,954,111.96/3,705.09
6. Step 6: Final answer
   x = 3,226.40