Finding the Fourth Proportional to 1,398.33, 1,928.62 and 950.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,398.33 : 1,928.62 = 950.54 : x
2. Step 2: Convert to fraction form
   1,398.33/1,928.62 = 950.54/x
3. Step 3: Cross multiply
   1,398.33x = 1,928.62 × 950.54
4. Step 4: Simplify right side
   1,398.33x = 1,833,216.06
5. Step 5: Solve for x
   x = 1,833,216.06/1,398.33
6. Step 6: Final answer
   x = 1,311.01