Finding the Fourth Proportional to 2,634.82, 3,959.42 and 1,403.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,634.82 : 3,959.42 = 1,403.12 : x
2. Step 2: Convert to fraction form
   2,634.82/3,959.42 = 1,403.12/x
3. Step 3: Cross multiply
   2,634.82x = 3,959.42 × 1,403.12
4. Step 4: Simplify right side
   2,634.82x = 5,555,541.39
5. Step 5: Solve for x
   x = 5,555,541.39/2,634.82
6. Step 6: Final answer
   x = 2,108.51