Finding the Fourth Proportional to 2,185.76, 3,279.44 and 1,016.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.76 : 3,279.44 = 1,016.39 : x
2. Step 2: Convert to fraction form
   2,185.76/3,279.44 = 1,016.39/x
3. Step 3: Cross multiply
   2,185.76x = 3,279.44 × 1,016.39
4. Step 4: Simplify right side
   2,185.76x = 3,333,176.17
5. Step 5: Solve for x
   x = 3,333,176.17/2,185.76
6. Step 6: Final answer
   x = 1,524.95