Finding the Fourth Proportional to 3,709.69, 5,564.18 and 1,077.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,709.69 : 5,564.18 = 1,077.89 : x
2. Step 2: Convert to fraction form
   3,709.69/5,564.18 = 1,077.89/x
3. Step 3: Cross multiply
   3,709.69x = 5,564.18 × 1,077.89
4. Step 4: Simplify right side
   3,709.69x = 5,997,548.85
5. Step 5: Solve for x
   x = 5,997,548.85/3,709.69
6. Step 6: Final answer
   x = 1,616.73