Finding the Fourth Proportional to 1,378.50, 1,901.25 and 958.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378.50 : 1,901.25 = 958.83 : x
2. Step 2: Convert to fraction form
   1,378.50/1,901.25 = 958.83/x
3. Step 3: Cross multiply
   1,378.50x = 1,901.25 × 958.83
4. Step 4: Simplify right side
   1,378.50x = 1,822,975.54
5. Step 5: Solve for x
   x = 1,822,975.54/1,378.50
6. Step 6: Final answer
   x = 1,322.43