Finding the Fourth Proportional to 3,551.69, 5,329.89 and 1,243.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,551.69 : 5,329.89 = 1,243.19 : x
2. Step 2: Convert to fraction form
   3,551.69/5,329.89 = 1,243.19/x
3. Step 3: Cross multiply
   3,551.69x = 5,329.89 × 1,243.19
4. Step 4: Simplify right side
   3,551.69x = 6,626,039.30
5. Step 5: Solve for x
   x = 6,626,039.30/3,551.69
6. Step 6: Final answer
   x = 1,865.60