Finding the Fourth Proportional to 2,645.08, 3,651.42 and 1,984.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.08 : 3,651.42 = 1,984.12 : x
2. Step 2: Convert to fraction form
   2,645.08/3,651.42 = 1,984.12/x
3. Step 3: Cross multiply
   2,645.08x = 3,651.42 × 1,984.12
4. Step 4: Simplify right side
   2,645.08x = 7,244,855.45
5. Step 5: Solve for x
   x = 7,244,855.45/2,645.08
6. Step 6: Final answer
   x = 2,738.99