Finding the Fourth Proportional to 2,369.28, 3,268.80 and 1,670.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,369.28 : 3,268.80 = 1,670.72 : x
2. Step 2: Convert to fraction form
   2,369.28/3,268.80 = 1,670.72/x
3. Step 3: Cross multiply
   2,369.28x = 3,268.80 × 1,670.72
4. Step 4: Simplify right side
   2,369.28x = 5,461,249.54
5. Step 5: Solve for x
   x = 5,461,249.54/2,369.28
6. Step 6: Final answer
   x = 2,305.02