Finding the Fourth Proportional to 3,790.60, 5,684.52 and 1,324.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790.60 : 5,684.52 = 1,324.72 : x
2. Step 2: Convert to fraction form
   3,790.60/5,684.52 = 1,324.72/x
3. Step 3: Cross multiply
   3,790.60x = 5,684.52 × 1,324.72
4. Step 4: Simplify right side
   3,790.60x = 7,530,397.33
5. Step 5: Solve for x
   x = 7,530,397.33/3,790.60
6. Step 6: Final answer
   x = 1,986.60