Finding the Fourth Proportional to 1,583.91, 2,185.43 and 954.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.91 : 2,185.43 = 954.27 : x
2. Step 2: Convert to fraction form
   1,583.91/2,185.43 = 954.27/x
3. Step 3: Cross multiply
   1,583.91x = 2,185.43 × 954.27
4. Step 4: Simplify right side
   1,583.91x = 2,085,485.51
5. Step 5: Solve for x
   x = 2,085,485.51/1,583.91
6. Step 6: Final answer
   x = 1,316.67