Finding the Fourth Proportional to 1,401.57, 2,104.38 and 854.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.57 : 2,104.38 = 854.82 : x
2. Step 2: Convert to fraction form
   1,401.57/2,104.38 = 854.82/x
3. Step 3: Cross multiply
   1,401.57x = 2,104.38 × 854.82
4. Step 4: Simplify right side
   1,401.57x = 1,798,866.11
5. Step 5: Solve for x
   x = 1,798,866.11/1,401.57
6. Step 6: Final answer
   x = 1,283.47