Finding the Fourth Proportional to 1,517.80, 2,094.42 and 854.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.80 : 2,094.42 = 854.50 : x
2. Step 2: Convert to fraction form
   1,517.80/2,094.42 = 854.50/x
3. Step 3: Cross multiply
   1,517.80x = 2,094.42 × 854.50
4. Step 4: Simplify right side
   1,517.80x = 1,789,681.89
5. Step 5: Solve for x
   x = 1,789,681.89/1,517.80
6. Step 6: Final answer
   x = 1,179.13