Finding the Fourth Proportional to 2,005,342.88, 2,767,992.72 and 1,289,950.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005,342.88 : 2,767,992.72 = 1,289,950.88 : x
2. Step 2: Convert to fraction form
   2,005,342.88/2,767,992.72 = 1,289,950.88/x
3. Step 3: Cross multiply
   2,005,342.88x = 2,767,992.72 × 1,289,950.88
4. Step 4: Simplify right side
   2,005,342.88x = 3,570,574,644,997.59
5. Step 5: Solve for x
   x = 3,570,574,644,997.59/2,005,342.88
6. Step 6: Final answer
   x = 1,780,530.74