Finding the Fourth Proportional to 2,257,352.69, 3,115,236.57 and 1,238,793.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257,352.69 : 3,115,236.57 = 1,238,793.89 : x
2. Step 2: Convert to fraction form
   2,257,352.69/3,115,236.57 = 1,238,793.89/x
3. Step 3: Cross multiply
   2,257,352.69x = 3,115,236.57 × 1,238,793.89
4. Step 4: Simplify right side
   2,257,352.69x = 3,859,136,022,626.59
5. Step 5: Solve for x
   x = 3,859,136,022,626.59/2,257,352.69
6. Step 6: Final answer
   x = 1,709,584.88