Finding the Fourth Proportional to 1,657.39, 2,485.83 and 546.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,657.39 : 2,485.83 = 546.82 : x
2. Step 2: Convert to fraction form
   1,657.39/2,485.83 = 546.82/x
3. Step 3: Cross multiply
   1,657.39x = 2,485.83 × 546.82
4. Step 4: Simplify right side
   1,657.39x = 1,359,301.56
5. Step 5: Solve for x
   x = 1,359,301.56/1,657.39
6. Step 6: Final answer
   x = 820.15