Finding the Fourth Proportional to 2,158,436.14, 2,978,604 and 1,191,541.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,436.14 : 2,978,604 = 1,191,541.54 : x
2. Step 2: Convert to fraction form
   2,158,436.14/2,978,604 = 1,191,541.54/x
3. Step 3: Cross multiply
   2,158,436.14x = 2,978,604 × 1,191,541.54
4. Step 4: Simplify right side
   2,158,436.14x = 3,549,130,397,210.16
5. Step 5: Solve for x
   x = 3,549,130,397,210.16/2,158,436.14
6. Step 6: Final answer
   x = 1,644,306.42