Finding the Fourth Proportional to 2,158,610.92, 2,978,887.49 and 1,191,743.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,610.92 : 2,978,887.49 = 1,191,743.08 : x
2. Step 2: Convert to fraction form
   2,158,610.92/2,978,887.49 = 1,191,743.08/x
3. Step 3: Cross multiply
   2,158,610.92x = 2,978,887.49 × 1,191,743.08
4. Step 4: Simplify right side
   2,158,610.92x = 3,550,068,543,369.17
5. Step 5: Solve for x
   x = 3,550,068,543,369.17/2,158,610.92
6. Step 6: Final answer
   x = 1,644,607.89