Finding the Fourth Proportional to 3,868.02, 5,340.20 and 3,646.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.02 : 5,340.20 = 3,646.62 : x
2. Step 2: Convert to fraction form
   3,868.02/5,340.20 = 3,646.62/x
3. Step 3: Cross multiply
   3,868.02x = 5,340.20 × 3,646.62
4. Step 4: Simplify right side
   3,868.02x = 19,473,661.89
5. Step 5: Solve for x
   x = 19,473,661.89/3,868.02
6. Step 6: Final answer
   x = 5,034.53