Finding the Fourth Proportional to 2,665,394.64, 3,998,103.60 and 843,768.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665,394.64 : 3,998,103.60 = 843,768.50 : x
2. Step 2: Convert to fraction form
   2,665,394.64/3,998,103.60 = 843,768.50/x
3. Step 3: Cross multiply
   2,665,394.64x = 3,998,103.60 × 843,768.50
4. Step 4: Simplify right side
   2,665,394.64x = 3,373,473,853,470.92
5. Step 5: Solve for x
   x = 3,373,473,853,470.92/2,665,394.64
6. Step 6: Final answer
   x = 1,265,656.43