Finding the Fourth Proportional to 1,716.48, 2,574.69 and 546.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,716.48 : 2,574.69 = 546.55 : x
2. Step 2: Convert to fraction form
   1,716.48/2,574.69 = 546.55/x
3. Step 3: Cross multiply
   1,716.48x = 2,574.69 × 546.55
4. Step 4: Simplify right side
   1,716.48x = 1,407,196.82
5. Step 5: Solve for x
   x = 1,407,196.82/1,716.48
6. Step 6: Final answer
   x = 819.82