Finding the Fourth Proportional to 3,642,978.19, 5,464,729.72 and 1,399,116.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642,978.19 : 5,464,729.72 = 1,399,116.19 : x
2. Step 2: Convert to fraction form
   3,642,978.19/5,464,729.72 = 1,399,116.19/x
3. Step 3: Cross multiply
   3,642,978.19x = 5,464,729.72 × 1,399,116.19
4. Step 4: Simplify right side
   3,642,978.19x = 7,645,791,825,226.17
5. Step 5: Solve for x
   x = 7,645,791,825,226.17/3,642,978.19
6. Step 6: Final answer
   x = 2,098,775.08