Finding the Fourth Proportional to 2,616.91, 3,609.83 and 1,907.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.91 : 3,609.83 = 1,907.82 : x
2. Step 2: Convert to fraction form
   2,616.91/3,609.83 = 1,907.82/x
3. Step 3: Cross multiply
   2,616.91x = 3,609.83 × 1,907.82
4. Step 4: Simplify right side
   2,616.91x = 6,886,910.64
5. Step 5: Solve for x
   x = 6,886,910.64/2,616.91
6. Step 6: Final answer
   x = 2,631.70