Finding the Fourth Proportional to 3,897.30, 5,818.21 and 3,760.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897.30 : 5,818.21 = 3,760.62 : x
2. Step 2: Convert to fraction form
   3,897.30/5,818.21 = 3,760.62/x
3. Step 3: Cross multiply
   3,897.30x = 5,818.21 × 3,760.62
4. Step 4: Simplify right side
   3,897.30x = 21,880,076.89
5. Step 5: Solve for x
   x = 21,880,076.89/3,897.30
6. Step 6: Final answer
   x = 5,614.16