Finding the Fourth Proportional to 3,930.10, 5,862.04 and 3,657.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,930.10 : 5,862.04 = 3,657.94 : x
2. Step 2: Convert to fraction form
   3,930.10/5,862.04 = 3,657.94/x
3. Step 3: Cross multiply
   3,930.10x = 5,862.04 × 3,657.94
4. Step 4: Simplify right side
   3,930.10x = 21,442,990.60
5. Step 5: Solve for x
   x = 21,442,990.60/3,930.10
6. Step 6: Final answer
   x = 5,456.09