Finding the Fourth Proportional to 2,636.76, 3,955.83 and 1,403.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.76 : 3,955.83 = 1,403.16 : x
2. Step 2: Convert to fraction form
   2,636.76/3,955.83 = 1,403.16/x
3. Step 3: Cross multiply
   2,636.76x = 3,955.83 × 1,403.16
4. Step 4: Simplify right side
   2,636.76x = 5,550,662.42
5. Step 5: Solve for x
   x = 5,550,662.42/2,636.76
6. Step 6: Final answer
   x = 2,105.11