Finding the Fourth Proportional to 1,384.34, 1,906.94 and 963.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.34 : 1,906.94 = 963.95 : x
2. Step 2: Convert to fraction form
   1,384.34/1,906.94 = 963.95/x
3. Step 3: Cross multiply
   1,384.34x = 1,906.94 × 963.95
4. Step 4: Simplify right side
   1,384.34x = 1,838,198.41
5. Step 5: Solve for x
   x = 1,838,198.41/1,384.34
6. Step 6: Final answer
   x = 1,327.85