Finding the Fourth Proportional to 1,416.38, 1,953.81 and 885.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,416.38 : 1,953.81 = 885.62 : x
2. Step 2: Convert to fraction form
   1,416.38/1,953.81 = 885.62/x
3. Step 3: Cross multiply
   1,416.38x = 1,953.81 × 885.62
4. Step 4: Simplify right side
   1,416.38x = 1,730,333.21
5. Step 5: Solve for x
   x = 1,730,333.21/1,416.38
6. Step 6: Final answer
   x = 1,221.66