Finding the Fourth Proportional to 1,529.25, 2,109.67 and 939.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,529.25 : 2,109.67 = 939.43 : x
2. Step 2: Convert to fraction form
   1,529.25/2,109.67 = 939.43/x
3. Step 3: Cross multiply
   1,529.25x = 2,109.67 × 939.43
4. Step 4: Simplify right side
   1,529.25x = 1,981,887.29
5. Step 5: Solve for x
   x = 1,981,887.29/1,529.25
6. Step 6: Final answer
   x = 1,295.99