Finding the Fourth Proportional to 1,292.43, 1,783.83 and 850.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,292.43 : 1,783.83 = 850.37 : x
2. Step 2: Convert to fraction form
   1,292.43/1,783.83 = 850.37/x
3. Step 3: Cross multiply
   1,292.43x = 1,783.83 × 850.37
4. Step 4: Simplify right side
   1,292.43x = 1,516,915.52
5. Step 5: Solve for x
   x = 1,516,915.52/1,292.43
6. Step 6: Final answer
   x = 1,173.69