Finding the Fourth Proportional to 2,378,456.56, 3,282,272.16 and 1,290,728.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,378,456.56 : 3,282,272.16 = 1,290,728.14 : x
2. Step 2: Convert to fraction form
   2,378,456.56/3,282,272.16 = 1,290,728.14/x
3. Step 3: Cross multiply
   2,378,456.56x = 3,282,272.16 × 1,290,728.14
4. Step 4: Simplify right side
   2,378,456.56x = 4,236,521,040,050.58
5. Step 5: Solve for x
   x = 4,236,521,040,050.58/2,378,456.56
6. Step 6: Final answer
   x = 1,781,205.98