Finding the Fourth Proportional to 3,569.55, 5,355.23 and 1,377.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,569.55 : 5,355.23 = 1,377.69 : x
2. Step 2: Convert to fraction form
   3,569.55/5,355.23 = 1,377.69/x
3. Step 3: Cross multiply
   3,569.55x = 5,355.23 × 1,377.69
4. Step 4: Simplify right side
   3,569.55x = 7,377,846.82
5. Step 5: Solve for x
   x = 7,377,846.82/3,569.55
6. Step 6: Final answer
   x = 2,066.88