Finding the Fourth Proportional to 3,688.69, 5,531.59 and 1,635.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,688.69 : 5,531.59 = 1,635.25 : x
2. Step 2: Convert to fraction form
   3,688.69/5,531.59 = 1,635.25/x
3. Step 3: Cross multiply
   3,688.69x = 5,531.59 × 1,635.25
4. Step 4: Simplify right side
   3,688.69x = 9,045,532.55
5. Step 5: Solve for x
   x = 9,045,532.55/3,688.69
6. Step 6: Final answer
   x = 2,452.23