Finding the Fourth Proportional to 2,643.07, 3,647.82 and 1,523.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.07 : 3,647.82 = 1,523.79 : x
2. Step 2: Convert to fraction form
   2,643.07/3,647.82 = 1,523.79/x
3. Step 3: Cross multiply
   2,643.07x = 3,647.82 × 1,523.79
4. Step 4: Simplify right side
   2,643.07x = 5,558,504.95
5. Step 5: Solve for x
   x = 5,558,504.95/2,643.07
6. Step 6: Final answer
   x = 2,103.05