Finding the Fourth Proportional to 2,642.07, 3,964.46 and 1,343.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.07 : 3,964.46 = 1,343.54 : x
2. Step 2: Convert to fraction form
   2,642.07/3,964.46 = 1,343.54/x
3. Step 3: Cross multiply
   2,642.07x = 3,964.46 × 1,343.54
4. Step 4: Simplify right side
   2,642.07x = 5,326,384.05
5. Step 5: Solve for x
   x = 5,326,384.05/2,642.07
6. Step 6: Final answer
   x = 2,015.99