Finding the Fourth Proportional to 4,899.69, 6,761.59 and 2,661.57

Step by Step Solution

1. Step 1: Write the proportion equation
   4,899.69 : 6,761.59 = 2,661.57 : x
2. Step 2: Convert to fraction form
   4,899.69/6,761.59 = 2,661.57/x
3. Step 3: Cross multiply
   4,899.69x = 6,761.59 × 2,661.57
4. Step 4: Simplify right side
   4,899.69x = 17,996,451.69
5. Step 5: Solve for x
   x = 17,996,451.69/4,899.69
6. Step 6: Final answer
   x = 3,672.98