Finding the Fourth Proportional to 2,158,183.80, 2,978,294.24 and 1,191,314.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,183.80 : 2,978,294.24 = 1,191,314.72 : x
2. Step 2: Convert to fraction form
   2,158,183.80/2,978,294.24 = 1,191,314.72/x
3. Step 3: Cross multiply
   2,158,183.80x = 2,978,294.24 × 1,191,314.72
4. Step 4: Simplify right side
   2,158,183.80x = 3,548,085,768,603.21
5. Step 5: Solve for x
   x = 3,548,085,768,603.21/2,158,183.80
6. Step 6: Final answer
   x = 1,644,014.64