Finding the Fourth Proportional to 1,661.97, 2,293.55 and 953.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661.97 : 2,293.55 = 953.93 : x
2. Step 2: Convert to fraction form
   1,661.97/2,293.55 = 953.93/x
3. Step 3: Cross multiply
   1,661.97x = 2,293.55 × 953.93
4. Step 4: Simplify right side
   1,661.97x = 2,187,890.69
5. Step 5: Solve for x
   x = 2,187,890.69/1,661.97
6. Step 6: Final answer
   x = 1,316.44