Finding the Fourth Proportional to 3,261,185.69, 4,890,259.85 and 1,210,418.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,261,185.69 : 4,890,259.85 = 1,210,418.10 : x
2. Step 2: Convert to fraction form
   3,261,185.69/4,890,259.85 = 1,210,418.10/x
3. Step 3: Cross multiply
   3,261,185.69x = 4,890,259.85 × 1,210,418.10
4. Step 4: Simplify right side
   3,261,185.69x = 5,919,259,030,091.19
5. Step 5: Solve for x
   x = 5,919,259,030,091.19/3,261,185.69
6. Step 6: Final answer
   x = 1,815,063.48