Finding the Fourth Proportional to 3,689.89, 5,531.49 and 1,841.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689.89 : 5,531.49 = 1,841.57 : x
2. Step 2: Convert to fraction form
   3,689.89/5,531.49 = 1,841.57/x
3. Step 3: Cross multiply
   3,689.89x = 5,531.49 × 1,841.57
4. Step 4: Simplify right side
   3,689.89x = 10,186,626.04
5. Step 5: Solve for x
   x = 10,186,626.04/3,689.89
6. Step 6: Final answer
   x = 2,760.69