Finding the Fourth Proportional to 3,692.63, 5,542.59 and 1,961.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,692.63 : 5,542.59 = 1,961.25 : x
2. Step 2: Convert to fraction form
   3,692.63/5,542.59 = 1,961.25/x
3. Step 3: Cross multiply
   3,692.63x = 5,542.59 × 1,961.25
4. Step 4: Simplify right side
   3,692.63x = 10,870,404.64
5. Step 5: Solve for x
   x = 10,870,404.64/3,692.63
6. Step 6: Final answer
   x = 2,943.81