Finding the Fourth Proportional to 1,409.94, 1,945.89 and 885.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.94 : 1,945.89 = 885.87 : x
2. Step 2: Convert to fraction form
   1,409.94/1,945.89 = 885.87/x
3. Step 3: Cross multiply
   1,409.94x = 1,945.89 × 885.87
4. Step 4: Simplify right side
   1,409.94x = 1,723,805.57
5. Step 5: Solve for x
   x = 1,723,805.57/1,409.94
6. Step 6: Final answer
   x = 1,222.61