Finding the Fourth Proportional to 5,185.82, 7,780.28 and 1,676.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.82 : 7,780.28 = 1,676.37 : x
2. Step 2: Convert to fraction form
   5,185.82/7,780.28 = 1,676.37/x
3. Step 3: Cross multiply
   5,185.82x = 7,780.28 × 1,676.37
4. Step 4: Simplify right side
   5,185.82x = 13,042,627.98
5. Step 5: Solve for x
   x = 13,042,627.98/5,185.82
6. Step 6: Final answer
   x = 2,515.06