Finding the Fourth Proportional to 2,158,364.63, 2,978,465.12 and 1,191,474.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,364.63 : 2,978,465.12 = 1,191,474.16 : x
2. Step 2: Convert to fraction form
   2,158,364.63/2,978,465.12 = 1,191,474.16/x
3. Step 3: Cross multiply
   2,158,364.63x = 2,978,465.12 × 1,191,474.16
4. Step 4: Simplify right side
   2,158,364.63x = 3,548,764,229,919.98
5. Step 5: Solve for x
   x = 3,548,764,229,919.98/2,158,364.63
6. Step 6: Final answer
   x = 1,644,191.25