Finding the Fourth Proportional to 999,689.28, 1,499,532.72 and 325,769.52

Step by Step Solution

1. Step 1: Write the proportion equation
   999,689.28 : 1,499,532.72 = 325,769.52 : x
2. Step 2: Convert to fraction form
   999,689.28/1,499,532.72 = 325,769.52/x
3. Step 3: Cross multiply
   999,689.28x = 1,499,532.72 × 325,769.52
4. Step 4: Simplify right side
   999,689.28x = 488,502,054,418.69
5. Step 5: Solve for x
   x = 488,502,054,418.69/999,689.28
6. Step 6: Final answer
   x = 488,653.89