Finding the Fourth Proportional to 3,689,046.16, 5,090,892.72 and 2,057,559.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689,046.16 : 5,090,892.72 = 2,057,559.21 : x
2. Step 2: Convert to fraction form
   3,689,046.16/5,090,892.72 = 2,057,559.21/x
3. Step 3: Cross multiply
   3,689,046.16x = 5,090,892.72 × 2,057,559.21
4. Step 4: Simplify right side
   3,689,046.16x = 10,474,813,203,157.95
5. Step 5: Solve for x
   x = 10,474,813,203,157.95/3,689,046.16
6. Step 6: Final answer
   x = 2,839,436.74