Finding the Fourth Proportional to 3,749.18, 5,616.54 and 2,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,749.18 : 5,616.54 = 2,100.72 : x
2. Step 2: Convert to fraction form
   3,749.18/5,616.54 = 2,100.72/x
3. Step 3: Cross multiply
   3,749.18x = 5,616.54 × 2,100.72
4. Step 4: Simplify right side
   3,749.18x = 11,798,777.91
5. Step 5: Solve for x
   x = 11,798,777.91/3,749.18
6. Step 6: Final answer
   x = 3,147.03