Finding the Fourth Proportional to 2,158,603.48, 2,978,877.23 and 1,191,735.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,603.48 : 2,978,877.23 = 1,191,735.64 : x
2. Step 2: Convert to fraction form
   2,158,603.48/2,978,877.23 = 1,191,735.64/x
3. Step 3: Cross multiply
   2,158,603.48x = 2,978,877.23 × 1,191,735.64
4. Step 4: Simplify right side
   2,158,603.48x = 3,550,034,156,216.80
5. Step 5: Solve for x
   x = 3,550,034,156,216.80/2,158,603.48
6. Step 6: Final answer
   x = 1,644,597.62