Finding the Fourth Proportional to 2,383.91, 3,575.17 and 922.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,383.91 : 3,575.17 = 922.72 : x
2. Step 2: Convert to fraction form
   2,383.91/3,575.17 = 922.72/x
3. Step 3: Cross multiply
   2,383.91x = 3,575.17 × 922.72
4. Step 4: Simplify right side
   2,383.91x = 3,298,880.86
5. Step 5: Solve for x
   x = 3,298,880.86/2,383.91
6. Step 6: Final answer
   x = 1,383.81