Finding the Fourth Proportional to 1,031.82, 1,547.82 and 338.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.82 : 1,547.82 = 338.31 : x
2. Step 2: Convert to fraction form
   1,031.82/1,547.82 = 338.31/x
3. Step 3: Cross multiply
   1,031.82x = 1,547.82 × 338.31
4. Step 4: Simplify right side
   1,031.82x = 523,642.98
5. Step 5: Solve for x
   x = 523,642.98/1,031.82
6. Step 6: Final answer
   x = 507.49