Finding the Fourth Proportional to 3,862.89, 5,790.15 and 1,784.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,862.89 : 5,790.15 = 1,784.43 : x
2. Step 2: Convert to fraction form
   3,862.89/5,790.15 = 1,784.43/x
3. Step 3: Cross multiply
   3,862.89x = 5,790.15 × 1,784.43
4. Step 4: Simplify right side
   3,862.89x = 10,332,117.36
5. Step 5: Solve for x
   x = 10,332,117.36/3,862.89
6. Step 6: Final answer
   x = 2,674.71