Finding the Fourth Proportional to 2,645.59, 3,964.27 and 1,001.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.59 : 3,964.27 = 1,001.25 : x
2. Step 2: Convert to fraction form
   2,645.59/3,964.27 = 1,001.25/x
3. Step 3: Cross multiply
   2,645.59x = 3,964.27 × 1,001.25
4. Step 4: Simplify right side
   2,645.59x = 3,969,225.34
5. Step 5: Solve for x
   x = 3,969,225.34/2,645.59
6. Step 6: Final answer
   x = 1,500.32