Finding the Fourth Proportional to 3,840,162.76, 5,758,315.60 and 1,280,471.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,840,162.76 : 5,758,315.60 = 1,280,471.56 : x
2. Step 2: Convert to fraction form
   3,840,162.76/5,758,315.60 = 1,280,471.56/x
3. Step 3: Cross multiply
   3,840,162.76x = 5,758,315.60 × 1,280,471.56
4. Step 4: Simplify right side
   3,840,162.76x = 7,373,359,359,304.34
5. Step 5: Solve for x
   x = 7,373,359,359,304.34/3,840,162.76
6. Step 6: Final answer
   x = 1,920,064.28