Finding the Fourth Proportional to 1,106,380.91, 1,659,866.69 and 396,480.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106,380.91 : 1,659,866.69 = 396,480.71 : x
2. Step 2: Convert to fraction form
   1,106,380.91/1,659,866.69 = 396,480.71/x
3. Step 3: Cross multiply
   1,106,380.91x = 1,659,866.69 × 396,480.71
4. Step 4: Simplify right side
   1,106,380.91x = 658,105,123,756.55
5. Step 5: Solve for x
   x = 658,105,123,756.55/1,106,380.91
6. Step 6: Final answer
   x = 594,826.90