Finding the Fourth Proportional to 3,745.63, 5,613.72 and 1,897.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,745.63 : 5,613.72 = 1,897.21 : x
2. Step 2: Convert to fraction form
   3,745.63/5,613.72 = 1,897.21/x
3. Step 3: Cross multiply
   3,745.63x = 5,613.72 × 1,897.21
4. Step 4: Simplify right side
   3,745.63x = 10,650,405.72
5. Step 5: Solve for x
   x = 10,650,405.72/3,745.63
6. Step 6: Final answer
   x = 2,843.42