Finding the Fourth Proportional to 2,648.70, 3,973.19 and 1,005.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.70 : 3,973.19 = 1,005.01 : x
2. Step 2: Convert to fraction form
   2,648.70/3,973.19 = 1,005.01/x
3. Step 3: Cross multiply
   2,648.70x = 3,973.19 × 1,005.01
4. Step 4: Simplify right side
   2,648.70x = 3,993,080.72
5. Step 5: Solve for x
   x = 3,993,080.72/2,648.70
6. Step 6: Final answer
   x = 1,507.56