Finding the Fourth Proportional to 2,339.37, 3,510.78 and 1,107.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.37 : 3,510.78 = 1,107.16 : x
2. Step 2: Convert to fraction form
   2,339.37/3,510.78 = 1,107.16/x
3. Step 3: Cross multiply
   2,339.37x = 3,510.78 × 1,107.16
4. Step 4: Simplify right side
   2,339.37x = 3,886,977.63
5. Step 5: Solve for x
   x = 3,886,977.63/2,339.37
6. Step 6: Final answer
   x = 1,661.55