Finding the Fourth Proportional to 2,947,326, 4,420,988.76 and 817,410.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947,326 : 4,420,988.76 = 817,410.09 : x
2. Step 2: Convert to fraction form
   2,947,326/4,420,988.76 = 817,410.09/x
3. Step 3: Cross multiply
   2,947,326x = 4,420,988.76 × 817,410.09
4. Step 4: Simplify right side
   2,947,326x = 3,613,760,820,200.59
5. Step 5: Solve for x
   x = 3,613,760,820,200.59/2,947,326
6. Step 6: Final answer
   x = 1,226,115.07