Finding the Fourth Proportional to 2,629.12, 3,944.16 and 1,090.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.12 : 3,944.16 = 1,090.24 : x
2. Step 2: Convert to fraction form
   2,629.12/3,944.16 = 1,090.24/x
3. Step 3: Cross multiply
   2,629.12x = 3,944.16 × 1,090.24
4. Step 4: Simplify right side
   2,629.12x = 4,300,081.00
5. Step 5: Solve for x
   x = 4,300,081.00/2,629.12
6. Step 6: Final answer
   x = 1,635.56