Finding the Fourth Proportional to 2,391.42, 3,300.14 and 1,329.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.42 : 3,300.14 = 1,329.19 : x
2. Step 2: Convert to fraction form
   2,391.42/3,300.14 = 1,329.19/x
3. Step 3: Cross multiply
   2,391.42x = 3,300.14 × 1,329.19
4. Step 4: Simplify right side
   2,391.42x = 4,386,509.76
5. Step 5: Solve for x
   x = 4,386,509.76/2,391.42
6. Step 6: Final answer
   x = 1,834.27