Finding the Fourth Proportional to 3,916.09, 5,869.89 and 1,834.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.09 : 5,869.89 = 1,834.80 : x
2. Step 2: Convert to fraction form
   3,916.09/5,869.89 = 1,834.80/x
3. Step 3: Cross multiply
   3,916.09x = 5,869.89 × 1,834.80
4. Step 4: Simplify right side
   3,916.09x = 10,770,074.17
5. Step 5: Solve for x
   x = 10,770,074.17/3,916.09
6. Step 6: Final answer
   x = 2,750.21