Finding the Fourth Proportional to 1,517.90, 2,094.72 and 854.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.90 : 2,094.72 = 854.76 : x
2. Step 2: Convert to fraction form
   1,517.90/2,094.72 = 854.76/x
3. Step 3: Cross multiply
   1,517.90x = 2,094.72 × 854.76
4. Step 4: Simplify right side
   1,517.90x = 1,790,482.87
5. Step 5: Solve for x
   x = 1,790,482.87/1,517.90
6. Step 6: Final answer
   x = 1,179.58