Finding the Fourth Proportional to 2,647.35, 3,653.24 and 1,528.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.35 : 3,653.24 = 1,528.61 : x
2. Step 2: Convert to fraction form
   2,647.35/3,653.24 = 1,528.61/x
3. Step 3: Cross multiply
   2,647.35x = 3,653.24 × 1,528.61
4. Step 4: Simplify right side
   2,647.35x = 5,584,353.29
5. Step 5: Solve for x
   x = 5,584,353.29/2,647.35
6. Step 6: Final answer
   x = 2,109.41