Finding the Fourth Proportional to 1,009.52, 1,514.42 and 360.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009.52 : 1,514.42 = 360.10 : x
2. Step 2: Convert to fraction form
   1,009.52/1,514.42 = 360.10/x
3. Step 3: Cross multiply
   1,009.52x = 1,514.42 × 360.10
4. Step 4: Simplify right side
   1,009.52x = 545,339.76
5. Step 5: Solve for x
   x = 545,339.76/1,009.52
6. Step 6: Final answer
   x = 540.20