Finding the Fourth Proportional to 3,642,978.56, 5,464,730.28 and 1,399,116.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642,978.56 : 5,464,730.28 = 1,399,116.56 : x
2. Step 2: Convert to fraction form
   3,642,978.56/5,464,730.28 = 1,399,116.56/x
3. Step 3: Cross multiply
   3,642,978.56x = 5,464,730.28 × 1,399,116.56
4. Step 4: Simplify right side
   3,642,978.56x = 7,645,794,630,681.44
5. Step 5: Solve for x
   x = 7,645,794,630,681.44/3,642,978.56
6. Step 6: Final answer
   x = 2,098,775.63