Finding the Fourth Proportional to 2,284.81, 3,426.71 and 641.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.81 : 3,426.71 = 641.52 : x
2. Step 2: Convert to fraction form
   2,284.81/3,426.71 = 641.52/x
3. Step 3: Cross multiply
   2,284.81x = 3,426.71 × 641.52
4. Step 4: Simplify right side
   2,284.81x = 2,198,315.05
5. Step 5: Solve for x
   x = 2,198,315.05/2,284.81
6. Step 6: Final answer
   x = 962.14