Finding the Fourth Proportional to 2,604,569.78, 3,907,002.31 and 807,708.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604,569.78 : 3,907,002.31 = 807,708.71 : x
2. Step 2: Convert to fraction form
   2,604,569.78/3,907,002.31 = 807,708.71/x
3. Step 3: Cross multiply
   2,604,569.78x = 3,907,002.31 × 807,708.71
4. Step 4: Simplify right side
   2,604,569.78x = 3,155,719,803,525.35
5. Step 5: Solve for x
   x = 3,155,719,803,525.35/2,604,569.78
6. Step 6: Final answer
   x = 1,211,608.85