Finding the Fourth Proportional to 1,517.74, 2,094.56 and 854.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.74 : 2,094.56 = 854.80 : x
2. Step 2: Convert to fraction form
   1,517.74/2,094.56 = 854.80/x
3. Step 3: Cross multiply
   1,517.74x = 2,094.56 × 854.80
4. Step 4: Simplify right side
   1,517.74x = 1,790,429.89
5. Step 5: Solve for x
   x = 1,790,429.89/1,517.74
6. Step 6: Final answer
   x = 1,179.67