Finding the Fourth Proportional to 1,433.32, 1,976.65 and 954.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.32 : 1,976.65 = 954.57 : x
2. Step 2: Convert to fraction form
   1,433.32/1,976.65 = 954.57/x
3. Step 3: Cross multiply
   1,433.32x = 1,976.65 × 954.57
4. Step 4: Simplify right side
   1,433.32x = 1,886,850.79
5. Step 5: Solve for x
   x = 1,886,850.79/1,433.32
6. Step 6: Final answer
   x = 1,316.42