Finding the Fourth Proportional to 1,380,928.50, 2,071,418.67 and 383,682.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380,928.50 : 2,071,418.67 = 383,682.42 : x
2. Step 2: Convert to fraction form
   1,380,928.50/2,071,418.67 = 383,682.42/x
3. Step 3: Cross multiply
   1,380,928.50x = 2,071,418.67 × 383,682.42
4. Step 4: Simplify right side
   1,380,928.50x = 794,766,928,138.78
5. Step 5: Solve for x
   x = 794,766,928,138.78/1,380,928.50
6. Step 6: Final answer
   x = 575,530.83