Finding the Fourth Proportional to 2,644.81, 3,967.33 and 1,001.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.81 : 3,967.33 = 1,001.15 : x
2. Step 2: Convert to fraction form
   2,644.81/3,967.33 = 1,001.15/x
3. Step 3: Cross multiply
   2,644.81x = 3,967.33 × 1,001.15
4. Step 4: Simplify right side
   2,644.81x = 3,971,870.09
5. Step 5: Solve for x
   x = 3,971,870.09/2,644.81
6. Step 6: Final answer
   x = 1,501.76