Finding the Fourth Proportional to 1,409.56, 1,945.16 and 850.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.56 : 1,945.16 = 850.03 : x
2. Step 2: Convert to fraction form
   1,409.56/1,945.16 = 850.03/x
3. Step 3: Cross multiply
   1,409.56x = 1,945.16 × 850.03
4. Step 4: Simplify right side
   1,409.56x = 1,653,430.38
5. Step 5: Solve for x
   x = 1,653,430.38/1,409.56
6. Step 6: Final answer
   x = 1,173.02