Finding the Fourth Proportional to 2,158,362.27, 2,978,461.87 and 1,191,471.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,362.27 : 2,978,461.87 = 1,191,471.80 : x
2. Step 2: Convert to fraction form
   2,158,362.27/2,978,461.87 = 1,191,471.80/x
3. Step 3: Cross multiply
   2,158,362.27x = 2,978,461.87 × 1,191,471.80
4. Step 4: Simplify right side
   2,158,362.27x = 3,548,753,325,480.27
5. Step 5: Solve for x
   x = 3,548,753,325,480.27/2,158,362.27
6. Step 6: Final answer
   x = 1,644,187.99