Finding the Fourth Proportional to 1,318.56, 1,976.22 and 954.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,318.56 : 1,976.22 = 954.60 : x
2. Step 2: Convert to fraction form
   1,318.56/1,976.22 = 954.60/x
3. Step 3: Cross multiply
   1,318.56x = 1,976.22 × 954.60
4. Step 4: Simplify right side
   1,318.56x = 1,886,499.61
5. Step 5: Solve for x
   x = 1,886,499.61/1,318.56
6. Step 6: Final answer
   x = 1,430.73