Finding the Fourth Proportional to 1,079,288.25, 1,618,650.18 and 320,925.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079,288.25 : 1,618,650.18 = 320,925.48 : x
2. Step 2: Convert to fraction form
   1,079,288.25/1,618,650.18 = 320,925.48/x
3. Step 3: Cross multiply
   1,079,288.25x = 1,618,650.18 × 320,925.48
4. Step 4: Simplify right side
   1,079,288.25x = 519,466,085,968.59
5. Step 5: Solve for x
   x = 519,466,085,968.59/1,079,288.25
6. Step 6: Final answer
   x = 481,304.31