Finding the Fourth Proportional to 2,930,724.18, 4,394,840.67 and 1,200,401.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,930,724.18 : 4,394,840.67 = 1,200,401.12 : x
2. Step 2: Convert to fraction form
   2,930,724.18/4,394,840.67 = 1,200,401.12/x
3. Step 3: Cross multiply
   2,930,724.18x = 4,394,840.67 × 1,200,401.12
4. Step 4: Simplify right side
   2,930,724.18x = 5,275,571,662,489.55
5. Step 5: Solve for x
   x = 5,275,571,662,489.55/2,930,724.18
6. Step 6: Final answer
   x = 1,800,091.49