Finding the Fourth Proportional to 1,632.91, 2,450.40 and 854.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.91 : 2,450.40 = 854.31 : x
2. Step 2: Convert to fraction form
   1,632.91/2,450.40 = 854.31/x
3. Step 3: Cross multiply
   1,632.91x = 2,450.40 × 854.31
4. Step 4: Simplify right side
   1,632.91x = 2,093,401.22
5. Step 5: Solve for x
   x = 2,093,401.22/1,632.91
6. Step 6: Final answer
   x = 1,282.01