Finding the Fourth Proportional to 1,009.72, 1,514.25 and 944.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009.72 : 1,514.25 = 944.13 : x
2. Step 2: Convert to fraction form
   1,009.72/1,514.25 = 944.13/x
3. Step 3: Cross multiply
   1,009.72x = 1,514.25 × 944.13
4. Step 4: Simplify right side
   1,009.72x = 1,429,648.85
5. Step 5: Solve for x
   x = 1,429,648.85/1,009.72
6. Step 6: Final answer
   x = 1,415.89