Finding the Fourth Proportional to 2,158,436.36, 2,978,625.48 and 1,191,567.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,436.36 : 2,978,625.48 = 1,191,567.98 : x
2. Step 2: Convert to fraction form
   2,158,436.36/2,978,625.48 = 1,191,567.98/x
3. Step 3: Cross multiply
   2,158,436.36x = 2,978,625.48 × 1,191,567.98
4. Step 4: Simplify right side
   2,158,436.36x = 3,549,234,746,380.13
5. Step 5: Solve for x
   x = 3,549,234,746,380.13/2,158,436.36
6. Step 6: Final answer
   x = 1,644,354.59