Finding the Fourth Proportional to 2,589,648.30, 3,885,591.87 and 1,390,169.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,589,648.30 : 3,885,591.87 = 1,390,169.88 : x
2. Step 2: Convert to fraction form
   2,589,648.30/3,885,591.87 = 1,390,169.88/x
3. Step 3: Cross multiply
   2,589,648.30x = 3,885,591.87 × 1,390,169.88
4. Step 4: Simplify right side
   2,589,648.30x = 5,401,632,783,646.88
5. Step 5: Solve for x
   x = 5,401,632,783,646.88/2,589,648.30
6. Step 6: Final answer
   x = 2,085,855.74