Finding the Fourth Proportional to 2,377.69, 3,280.84 and 1,329.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.69 : 3,280.84 = 1,329.55 : x
2. Step 2: Convert to fraction form
   2,377.69/3,280.84 = 1,329.55/x
3. Step 3: Cross multiply
   2,377.69x = 3,280.84 × 1,329.55
4. Step 4: Simplify right side
   2,377.69x = 4,362,040.82
5. Step 5: Solve for x
   x = 4,362,040.82/2,377.69
6. Step 6: Final answer
   x = 1,834.57