Finding the Fourth Proportional to 2,645.34, 3,968.49 and 914.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.34 : 3,968.49 = 914.46 : x
2. Step 2: Convert to fraction form
   2,645.34/3,968.49 = 914.46/x
3. Step 3: Cross multiply
   2,645.34x = 3,968.49 × 914.46
4. Step 4: Simplify right side
   2,645.34x = 3,629,025.37
5. Step 5: Solve for x
   x = 3,629,025.37/2,645.34
6. Step 6: Final answer
   x = 1,371.86