Finding the Fourth Proportional to 3,906,890.37, 5,860,556.69 and 1,211,598.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,906,890.37 : 5,860,556.69 = 1,211,598.72 : x
2. Step 2: Convert to fraction form
   3,906,890.37/5,860,556.69 = 1,211,598.72/x
3. Step 3: Cross multiply
   3,906,890.37x = 5,860,556.69 × 1,211,598.72
4. Step 4: Simplify right side
   3,906,890.37x = 7,100,642,978,033.44
5. Step 5: Solve for x
   x = 7,100,642,978,033.44/3,906,890.37
6. Step 6: Final answer
   x = 1,817,466.66