Finding the Fourth Proportional to 1,031.34, 1,547.16 and 300.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.34 : 1,547.16 = 300.83 : x
2. Step 2: Convert to fraction form
   1,031.34/1,547.16 = 300.83/x
3. Step 3: Cross multiply
   1,031.34x = 1,547.16 × 300.83
4. Step 4: Simplify right side
   1,031.34x = 465,424.41
5. Step 5: Solve for x
   x = 465,424.41/1,031.34
6. Step 6: Final answer
   x = 451.28