Finding the Fourth Proportional to 2,546.03, 3,816.72 and 1,086.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,546.03 : 3,816.72 = 1,086.21 : x
2. Step 2: Convert to fraction form
   2,546.03/3,816.72 = 1,086.21/x
3. Step 3: Cross multiply
   2,546.03x = 3,816.72 × 1,086.21
4. Step 4: Simplify right side
   2,546.03x = 4,145,759.43
5. Step 5: Solve for x
   x = 4,145,759.43/2,546.03
6. Step 6: Final answer
   x = 1,628.32