Finding the Fourth Proportional to 1,068.38, 1,602.83 and 298.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.38 : 1,602.83 = 298.88 : x
2. Step 2: Convert to fraction form
   1,068.38/1,602.83 = 298.88/x
3. Step 3: Cross multiply
   1,068.38x = 1,602.83 × 298.88
4. Step 4: Simplify right side
   1,068.38x = 479,046.56
5. Step 5: Solve for x
   x = 479,046.56/1,068.38
6. Step 6: Final answer
   x = 448.39