Finding the Fourth Proportional to 3,675.69, 5,513.85 and 1,043.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,675.69 : 5,513.85 = 1,043.21 : x
2. Step 2: Convert to fraction form
   3,675.69/5,513.85 = 1,043.21/x
3. Step 3: Cross multiply
   3,675.69x = 5,513.85 × 1,043.21
4. Step 4: Simplify right side
   3,675.69x = 5,752,075.89
5. Step 5: Solve for x
   x = 5,752,075.89/3,675.69
6. Step 6: Final answer
   x = 1,564.90