Finding the Fourth Proportional to 2,308.74, 3,446.05 and 2,146.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.74 : 3,446.05 = 2,146.20 : x
2. Step 2: Convert to fraction form
   2,308.74/3,446.05 = 2,146.20/x
3. Step 3: Cross multiply
   2,308.74x = 3,446.05 × 2,146.20
4. Step 4: Simplify right side
   2,308.74x = 7,395,912.51
5. Step 5: Solve for x
   x = 7,395,912.51/2,308.74
6. Step 6: Final answer
   x = 3,203.44