Finding the Fourth Proportional to 2,870.56, 3,961.38 and 1,676.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.56 : 3,961.38 = 1,676.37 : x
2. Step 2: Convert to fraction form
   2,870.56/3,961.38 = 1,676.37/x
3. Step 3: Cross multiply
   2,870.56x = 3,961.38 × 1,676.37
4. Step 4: Simplify right side
   2,870.56x = 6,640,743.88
5. Step 5: Solve for x
   x = 6,640,743.88/2,870.56
6. Step 6: Final answer
   x = 2,313.39