Finding the Fourth Proportional to 2,606.96, 3,905.40 and 1,449.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.96 : 3,905.40 = 1,449.20 : x
2. Step 2: Convert to fraction form
   2,606.96/3,905.40 = 1,449.20/x
3. Step 3: Cross multiply
   2,606.96x = 3,905.40 × 1,449.20
4. Step 4: Simplify right side
   2,606.96x = 5,659,720.88
5. Step 5: Solve for x
   x = 5,659,720.88/2,606.96
6. Step 6: Final answer
   x = 2,171.00