Finding the Fourth Proportional to 1,417.12, 1,954.32 and 945.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.12 : 1,954.32 = 945.28 : x
2. Step 2: Convert to fraction form
   1,417.12/1,954.32 = 945.28/x
3. Step 3: Cross multiply
   1,417.12x = 1,954.32 × 945.28
4. Step 4: Simplify right side
   1,417.12x = 1,847,379.61
5. Step 5: Solve for x
   x = 1,847,379.61/1,417.12
6. Step 6: Final answer
   x = 1,303.62