Finding the Fourth Proportional to 3,663.11, 5,498.94 and 1,911.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.11 : 5,498.94 = 1,911.46 : x
2. Step 2: Convert to fraction form
   3,663.11/5,498.94 = 1,911.46/x
3. Step 3: Cross multiply
   3,663.11x = 5,498.94 × 1,911.46
4. Step 4: Simplify right side
   3,663.11x = 10,511,004.56
5. Step 5: Solve for x
   x = 10,511,004.56/3,663.11
6. Step 6: Final answer
   x = 2,869.42