Finding the Fourth Proportional to 2,078,328.96, 2,870,074.89 and 1,965,108.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078,328.96 : 2,870,074.89 = 1,965,108.78 : x
2. Step 2: Convert to fraction form
   2,078,328.96/2,870,074.89 = 1,965,108.78/x
3. Step 3: Cross multiply
   2,078,328.96x = 2,870,074.89 × 1,965,108.78
4. Step 4: Simplify right side
   2,078,328.96x = 5,640,009,365,596.53
5. Step 5: Solve for x
   x = 5,640,009,365,596.53/2,078,328.96
6. Step 6: Final answer
   x = 2,713,723.13