Finding the Fourth Proportional to 2,260,665.46, 3,118,837.80 and 1,280,379.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,260,665.46 : 3,118,837.80 = 1,280,379.16 : x
2. Step 2: Convert to fraction form
   2,260,665.46/3,118,837.80 = 1,280,379.16/x
3. Step 3: Cross multiply
   2,260,665.46x = 3,118,837.80 × 1,280,379.16
4. Step 4: Simplify right side
   2,260,665.46x = 3,993,294,922,540.25
5. Step 5: Solve for x
   x = 3,993,294,922,540.25/2,260,665.46
6. Step 6: Final answer
   x = 1,766,424.53