Finding the Fourth Proportional to 2,908,980.76, 4,361,443.72 and 1,288,869

Step by Step Solution

1. Step 1: Write the proportion equation
   2,908,980.76 : 4,361,443.72 = 1,288,869 : x
2. Step 2: Convert to fraction form
   2,908,980.76/4,361,443.72 = 1,288,869/x
3. Step 3: Cross multiply
   2,908,980.76x = 4,361,443.72 × 1,288,869
4. Step 4: Simplify right side
   2,908,980.76x = 5,621,329,605,952.68
5. Step 5: Solve for x
   x = 5,621,329,605,952.68/2,908,980.76
6. Step 6: Final answer
   x = 1,932,405.22