Finding the Fourth Proportional to 2,834,427.20, 4,250,768.73 and 812,129.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,834,427.20 : 4,250,768.73 = 812,129.25 : x
2. Step 2: Convert to fraction form
   2,834,427.20/4,250,768.73 = 812,129.25/x
3. Step 3: Cross multiply
   2,834,427.20x = 4,250,768.73 × 812,129.25
4. Step 4: Simplify right side
   2,834,427.20x = 3,452,173,633,513.25
5. Step 5: Solve for x
   x = 3,452,173,633,513.25/2,834,427.20
6. Step 6: Final answer
   x = 1,217,944.01