Finding the Fourth Proportional to 1,628.84, 2,247.82 and 965.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628.84 : 2,247.82 = 965.57 : x
2. Step 2: Convert to fraction form
   1,628.84/2,247.82 = 965.57/x
3. Step 3: Cross multiply
   1,628.84x = 2,247.82 × 965.57
4. Step 4: Simplify right side
   1,628.84x = 2,170,426.55
5. Step 5: Solve for x
   x = 2,170,426.55/1,628.84
6. Step 6: Final answer
   x = 1,332.50