Finding the Fourth Proportional to 3,675.18, 5,071.72 and 1,996.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,675.18 : 5,071.72 = 1,996.57 : x
2. Step 2: Convert to fraction form
   3,675.18/5,071.72 = 1,996.57/x
3. Step 3: Cross multiply
   3,675.18x = 5,071.72 × 1,996.57
4. Step 4: Simplify right side
   3,675.18x = 10,126,031.32
5. Step 5: Solve for x
   x = 10,126,031.32/3,675.18
6. Step 6: Final answer
   x = 2,755.25