Finding the Fourth Proportional to 2,158,367.93, 2,978,469.69 and 1,191,477.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,367.93 : 2,978,469.69 = 1,191,477.46 : x
2. Step 2: Convert to fraction form
   2,158,367.93/2,978,469.69 = 1,191,477.46/x
3. Step 3: Cross multiply
   2,158,367.93x = 2,978,469.69 × 1,191,477.46
4. Step 4: Simplify right side
   2,158,367.93x = 3,548,779,500,928.19
5. Step 5: Solve for x
   x = 3,548,779,500,928.19/2,158,367.93
6. Step 6: Final answer
   x = 1,644,195.81