Finding the Fourth Proportional to 2,284.35, 3,427.90 and 985.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.35 : 3,427.90 = 985.82 : x
2. Step 2: Convert to fraction form
   2,284.35/3,427.90 = 985.82/x
3. Step 3: Cross multiply
   2,284.35x = 3,427.90 × 985.82
4. Step 4: Simplify right side
   2,284.35x = 3,379,300.93
5. Step 5: Solve for x
   x = 3,379,300.93/2,284.35
6. Step 6: Final answer
   x = 1,479.32