Finding the Fourth Proportional to 1,068.82, 1,603.95 and 483.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.82 : 1,603.95 = 483.98 : x
2. Step 2: Convert to fraction form
   1,068.82/1,603.95 = 483.98/x
3. Step 3: Cross multiply
   1,068.82x = 1,603.95 × 483.98
4. Step 4: Simplify right side
   1,068.82x = 776,279.72
5. Step 5: Solve for x
   x = 776,279.72/1,068.82
6. Step 6: Final answer
   x = 726.30