Finding the Fourth Proportional to 1,304.82, 1,953.72 and 1,098.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,304.82 : 1,953.72 = 1,098.90 : x
2. Step 2: Convert to fraction form
   1,304.82/1,953.72 = 1,098.90/x
3. Step 3: Cross multiply
   1,304.82x = 1,953.72 × 1,098.90
4. Step 4: Simplify right side
   1,304.82x = 2,146,942.91
5. Step 5: Solve for x
   x = 2,146,942.91/1,304.82
6. Step 6: Final answer
   x = 1,645.39