Finding the Fourth Proportional to 3,799.65, 5,648.19 and 3,687.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,799.65 : 5,648.19 = 3,687.53 : x
2. Step 2: Convert to fraction form
   3,799.65/5,648.19 = 3,687.53/x
3. Step 3: Cross multiply
   3,799.65x = 5,648.19 × 3,687.53
4. Step 4: Simplify right side
   3,799.65x = 20,827,841.83
5. Step 5: Solve for x
   x = 20,827,841.83/3,799.65
6. Step 6: Final answer
   x = 5,481.52