Finding the Fourth Proportional to 1,516.27, 2,092.56 and 853.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,516.27 : 2,092.56 = 853.15 : x
2. Step 2: Convert to fraction form
   1,516.27/2,092.56 = 853.15/x
3. Step 3: Cross multiply
   1,516.27x = 2,092.56 × 853.15
4. Step 4: Simplify right side
   1,516.27x = 1,785,267.56
5. Step 5: Solve for x
   x = 1,785,267.56/1,516.27
6. Step 6: Final answer
   x = 1,177.41