Finding the Fourth Proportional to 2,645.15, 3,967.52 and 1,084.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.15 : 3,967.52 = 1,084.73 : x
2. Step 2: Convert to fraction form
   2,645.15/3,967.52 = 1,084.73/x
3. Step 3: Cross multiply
   2,645.15x = 3,967.52 × 1,084.73
4. Step 4: Simplify right side
   2,645.15x = 4,303,662.71
5. Step 5: Solve for x
   x = 4,303,662.71/2,645.15
6. Step 6: Final answer
   x = 1,627.00