Finding the Fourth Proportional to 1,677.41, 2,514.96 and 854.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.41 : 2,514.96 = 854.09 : x
2. Step 2: Convert to fraction form
   1,677.41/2,514.96 = 854.09/x
3. Step 3: Cross multiply
   1,677.41x = 2,514.96 × 854.09
4. Step 4: Simplify right side
   1,677.41x = 2,148,002.19
5. Step 5: Solve for x
   x = 2,148,002.19/1,677.41
6. Step 6: Final answer
   x = 1,280.55