Finding the Fourth Proportional to 3,156,074.69, 4,355,295.89 and 1,779,406.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,156,074.69 : 4,355,295.89 = 1,779,406.31 : x
2. Step 2: Convert to fraction form
   3,156,074.69/4,355,295.89 = 1,779,406.31/x
3. Step 3: Cross multiply
   3,156,074.69x = 4,355,295.89 × 1,779,406.31
4. Step 4: Simplify right side
   3,156,074.69x = 7,749,840,990,574.27
5. Step 5: Solve for x
   x = 7,749,840,990,574.27/3,156,074.69
6. Step 6: Final answer
   x = 2,455,531.56