Finding the Fourth Proportional to 2,834,426.25, 4,250,767.32 and 812,128.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,834,426.25 : 4,250,767.32 = 812,128.32 : x
2. Step 2: Convert to fraction form
   2,834,426.25/4,250,767.32 = 812,128.32/x
3. Step 3: Cross multiply
   2,834,426.25x = 4,250,767.32 × 812,128.32
4. Step 4: Simplify right side
   2,834,426.25x = 3,452,168,522,302.50
5. Step 5: Solve for x
   x = 3,452,168,522,302.50/2,834,426.25
6. Step 6: Final answer
   x = 1,217,942.62