Finding the Fourth Proportional to 3,280.84, 4,917.72 and 1,634.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,280.84 : 4,917.72 = 1,634.12 : x
2. Step 2: Convert to fraction form
   3,280.84/4,917.72 = 1,634.12/x
3. Step 3: Cross multiply
   3,280.84x = 4,917.72 × 1,634.12
4. Step 4: Simplify right side
   3,280.84x = 8,036,144.61
5. Step 5: Solve for x
   x = 8,036,144.61/3,280.84
6. Step 6: Final answer
   x = 2,449.42