Finding the Fourth Proportional to 2,642.08, 3,960.96 and 1,104.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.08 : 3,960.96 = 1,104.16 : x
2. Step 2: Convert to fraction form
   2,642.08/3,960.96 = 1,104.16/x
3. Step 3: Cross multiply
   2,642.08x = 3,960.96 × 1,104.16
4. Step 4: Simplify right side
   2,642.08x = 4,373,533.59
5. Step 5: Solve for x
   x = 4,373,533.59/2,642.08
6. Step 6: Final answer
   x = 1,655.34