Finding the Fourth Proportional to 2,945,147.73, 4,417,727.67 and 815,238.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945,147.73 : 4,417,727.67 = 815,238.15 : x
2. Step 2: Convert to fraction form
   2,945,147.73/4,417,727.67 = 815,238.15/x
3. Step 3: Cross multiply
   2,945,147.73x = 4,417,727.67 × 815,238.15
4. Step 4: Simplify right side
   2,945,147.73x = 3,601,500,132,894.61
5. Step 5: Solve for x
   x = 3,601,500,132,894.61/2,945,147.73
6. Step 6: Final answer
   x = 1,222,858.91