Finding the Fourth Proportional to 2,158,495.67, 2,978,646 and 1,191,605.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,495.67 : 2,978,646 = 1,191,605.24 : x
2. Step 2: Convert to fraction form
   2,158,495.67/2,978,646 = 1,191,605.24/x
3. Step 3: Cross multiply
   2,158,495.67x = 2,978,646 × 1,191,605.24
4. Step 4: Simplify right side
   2,158,495.67x = 3,549,370,181,705.04
5. Step 5: Solve for x
   x = 3,549,370,181,705.04/2,158,495.67
6. Step 6: Final answer
   x = 1,644,372.16