Finding the Fourth Proportional to 1,149.50, 1,725.17 and 945.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,149.50 : 1,725.17 = 945.38 : x
2. Step 2: Convert to fraction form
   1,149.50/1,725.17 = 945.38/x
3. Step 3: Cross multiply
   1,149.50x = 1,725.17 × 945.38
4. Step 4: Simplify right side
   1,149.50x = 1,630,940.80
5. Step 5: Solve for x
   x = 1,630,940.80/1,149.50
6. Step 6: Final answer
   x = 1,418.82