Finding the Fourth Proportional to 2,645.66, 3,969.36 and 1,002.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.66 : 3,969.36 = 1,002.34 : x
2. Step 2: Convert to fraction form
   2,645.66/3,969.36 = 1,002.34/x
3. Step 3: Cross multiply
   2,645.66x = 3,969.36 × 1,002.34
4. Step 4: Simplify right side
   2,645.66x = 3,978,648.30
5. Step 5: Solve for x
   x = 3,978,648.30/2,645.66
6. Step 6: Final answer
   x = 1,503.84