Finding the Fourth Proportional to 1,068.38, 1,604.06 and 548.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.38 : 1,604.06 = 548.82 : x
2. Step 2: Convert to fraction form
   1,068.38/1,604.06 = 548.82/x
3. Step 3: Cross multiply
   1,068.38x = 1,604.06 × 548.82
4. Step 4: Simplify right side
   1,068.38x = 880,339.52
5. Step 5: Solve for x
   x = 880,339.52/1,068.38
6. Step 6: Final answer
   x = 824.00