Finding the Fourth Proportional to 2,647.99, 3,973.56 and 1,005.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.99 : 3,973.56 = 1,005.92 : x
2. Step 2: Convert to fraction form
   2,647.99/3,973.56 = 1,005.92/x
3. Step 3: Cross multiply
   2,647.99x = 3,973.56 × 1,005.92
4. Step 4: Simplify right side
   2,647.99x = 3,997,074.74
5. Step 5: Solve for x
   x = 3,997,074.74/2,647.99
6. Step 6: Final answer
   x = 1,509.47