Finding the Fourth Proportional to 1,013.98, 1,520.82 and 364.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013.98 : 1,520.82 = 364.72 : x
2. Step 2: Convert to fraction form
   1,013.98/1,520.82 = 364.72/x
3. Step 3: Cross multiply
   1,013.98x = 1,520.82 × 364.72
4. Step 4: Simplify right side
   1,013.98x = 554,673.47
5. Step 5: Solve for x
   x = 554,673.47/1,013.98
6. Step 6: Final answer
   x = 547.03