Finding the Fourth Proportional to 2,158,600.98, 2,978,873.78 and 1,191,733.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,600.98 : 2,978,873.78 = 1,191,733.14 : x
2. Step 2: Convert to fraction form
   2,158,600.98/2,978,873.78 = 1,191,733.14/x
3. Step 3: Cross multiply
   2,158,600.98x = 2,978,873.78 × 1,191,733.14
4. Step 4: Simplify right side
   2,158,600.98x = 3,550,022,597,544.40
5. Step 5: Solve for x
   x = 3,550,022,597,544.40/2,158,600.98
6. Step 6: Final answer
   x = 1,644,594.17