Finding the Fourth Proportional to 2,158,484.94, 3,236,019.50 and 810,497.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,484.94 : 3,236,019.50 = 810,497.42 : x
2. Step 2: Convert to fraction form
   2,158,484.94/3,236,019.50 = 810,497.42/x
3. Step 3: Cross multiply
   2,158,484.94x = 3,236,019.50 × 810,497.42
4. Step 4: Simplify right side
   2,158,484.94x = 2,622,785,439,000.92
5. Step 5: Solve for x
   x = 2,622,785,439,000.92/2,158,484.94
6. Step 6: Final answer
   x = 1,215,104.81