Finding the Fourth Proportional to 1,039,733.84, 1,559,749.52 and 320,136.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,733.84 : 1,559,749.52 = 320,136.42 : x
2. Step 2: Convert to fraction form
   1,039,733.84/1,559,749.52 = 320,136.42/x
3. Step 3: Cross multiply
   1,039,733.84x = 1,559,749.52 × 320,136.42
4. Step 4: Simplify right side
   1,039,733.84x = 499,332,627,429.52
5. Step 5: Solve for x
   x = 499,332,627,429.52/1,039,733.84
6. Step 6: Final answer
   x = 480,250.43