Finding the Fourth Proportional to 1,978,511.10, 2,967,183.45 and 780,035.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978,511.10 : 2,967,183.45 = 780,035.10 : x
2. Step 2: Convert to fraction form
   1,978,511.10/2,967,183.45 = 780,035.10/x
3. Step 3: Cross multiply
   1,978,511.10x = 2,967,183.45 × 780,035.10
4. Step 4: Simplify right side
   1,978,511.10x = 2,314,507,239,139.10
5. Step 5: Solve for x
   x = 2,314,507,239,139.10/1,978,511.10
6. Step 6: Final answer
   x = 1,169,822.72