Finding the Fourth Proportional to 3,870,518.72, 5,805,858.04 and 1,408,450.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870,518.72 : 5,805,858.04 = 1,408,450.15 : x
2. Step 2: Convert to fraction form
   3,870,518.72/5,805,858.04 = 1,408,450.15/x
3. Step 3: Cross multiply
   3,870,518.72x = 5,805,858.04 × 1,408,450.15
4. Step 4: Simplify right side
   3,870,518.72x = 8,177,261,609,280.94
5. Step 5: Solve for x
   x = 8,177,261,609,280.94/3,870,518.72
6. Step 6: Final answer
   x = 2,112,704.32