Finding the Fourth Proportional to 1,409.82, 1,945.47 and 850.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.82 : 1,945.47 = 850.47 : x
2. Step 2: Convert to fraction form
   1,409.82/1,945.47 = 850.47/x
3. Step 3: Cross multiply
   1,409.82x = 1,945.47 × 850.47
4. Step 4: Simplify right side
   1,409.82x = 1,654,563.87
5. Step 5: Solve for x
   x = 1,654,563.87/1,409.82
6. Step 6: Final answer
   x = 1,173.60