Finding the Fourth Proportional to 2,567,280.78, 3,542,978.10 and 1,421,487.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,567,280.78 : 3,542,978.10 = 1,421,487.18 : x
2. Step 2: Convert to fraction form
   2,567,280.78/3,542,978.10 = 1,421,487.18/x
3. Step 3: Cross multiply
   2,567,280.78x = 3,542,978.10 × 1,421,487.18
4. Step 4: Simplify right side
   2,567,280.78x = 5,036,297,948,170.76
5. Step 5: Solve for x
   x = 5,036,297,948,170.76/2,567,280.78
6. Step 6: Final answer
   x = 1,961,724.63