Finding the Fourth Proportional to 2,644.08, 3,968.52 and 1,346.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.08 : 3,968.52 = 1,346.40 : x
2. Step 2: Convert to fraction form
   2,644.08/3,968.52 = 1,346.40/x
3. Step 3: Cross multiply
   2,644.08x = 3,968.52 × 1,346.40
4. Step 4: Simplify right side
   2,644.08x = 5,343,215.33
5. Step 5: Solve for x
   x = 5,343,215.33/2,644.08
6. Step 6: Final answer
   x = 2,020.82