Finding the Fourth Proportional to 3,693.69, 5,538.91 and 1,383.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,693.69 : 5,538.91 = 1,383.57 : x
2. Step 2: Convert to fraction form
   3,693.69/5,538.91 = 1,383.57/x
3. Step 3: Cross multiply
   3,693.69x = 5,538.91 × 1,383.57
4. Step 4: Simplify right side
   3,693.69x = 7,663,435.10
5. Step 5: Solve for x
   x = 7,663,435.10/3,693.69
6. Step 6: Final answer
   x = 2,074.74