Finding the Fourth Proportional to 2,377.20, 3,280.56 and 1,329.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.20 : 3,280.56 = 1,329.32 : x
2. Step 2: Convert to fraction form
   2,377.20/3,280.56 = 1,329.32/x
3. Step 3: Cross multiply
   2,377.20x = 3,280.56 × 1,329.32
4. Step 4: Simplify right side
   2,377.20x = 4,360,914.02
5. Step 5: Solve for x
   x = 4,360,914.02/2,377.20
6. Step 6: Final answer
   x = 1,834.48