Finding the Fourth Proportional to 1,477.89, 2,040.21 and 954.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.89 : 2,040.21 = 954.23 : x
2. Step 2: Convert to fraction form
   1,477.89/2,040.21 = 954.23/x
3. Step 3: Cross multiply
   1,477.89x = 2,040.21 × 954.23
4. Step 4: Simplify right side
   1,477.89x = 1,946,819.39
5. Step 5: Solve for x
   x = 1,946,819.39/1,477.89
6. Step 6: Final answer
   x = 1,317.30