Finding the Fourth Proportional to 1,420.05, 1,960.37 and 948.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420.05 : 1,960.37 = 948.23 : x
2. Step 2: Convert to fraction form
   1,420.05/1,960.37 = 948.23/x
3. Step 3: Cross multiply
   1,420.05x = 1,960.37 × 948.23
4. Step 4: Simplify right side
   1,420.05x = 1,858,867.10
5. Step 5: Solve for x
   x = 1,858,867.10/1,420.05
6. Step 6: Final answer
   x = 1,309.02