Finding the Fourth Proportional to 2,585,183.55, 3,878,356.79 and 788,248.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585,183.55 : 3,878,356.79 = 788,248.67 : x
2. Step 2: Convert to fraction form
   2,585,183.55/3,878,356.79 = 788,248.67/x
3. Step 3: Cross multiply
   2,585,183.55x = 3,878,356.79 × 788,248.67
4. Step 4: Simplify right side
   2,585,183.55x = 3,057,109,567,865.83
5. Step 5: Solve for x
   x = 3,057,109,567,865.83/2,585,183.55
6. Step 6: Final answer
   x = 1,182,550.29