Finding the Fourth Proportional to 2,564,185.34, 3,846,480.24 and 858,338.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564,185.34 : 3,846,480.24 = 858,338.58 : x
2. Step 2: Convert to fraction form
   2,564,185.34/3,846,480.24 = 858,338.58/x
3. Step 3: Cross multiply
   2,564,185.34x = 3,846,480.24 × 858,338.58
4. Step 4: Simplify right side
   2,564,185.34x = 3,301,582,387,199.66
5. Step 5: Solve for x
   x = 3,301,582,387,199.66/2,564,185.34
6. Step 6: Final answer
   x = 1,287,575.56