Finding the Fourth Proportional to 3,663.50, 5,495.17 and 890.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.50 : 5,495.17 = 890.18 : x
2. Step 2: Convert to fraction form
   3,663.50/5,495.17 = 890.18/x
3. Step 3: Cross multiply
   3,663.50x = 5,495.17 × 890.18
4. Step 4: Simplify right side
   3,663.50x = 4,891,701.94
5. Step 5: Solve for x
   x = 4,891,701.94/3,663.50
6. Step 6: Final answer
   x = 1,335.26