Finding the Fourth Proportional to 2,082.41, 3,124.49 and 1,907.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.41 : 3,124.49 = 1,907.21 : x
2. Step 2: Convert to fraction form
   2,082.41/3,124.49 = 1,907.21/x
3. Step 3: Cross multiply
   2,082.41x = 3,124.49 × 1,907.21
4. Step 4: Simplify right side
   2,082.41x = 5,959,066.38
5. Step 5: Solve for x
   x = 5,959,066.38/2,082.41
6. Step 6: Final answer
   x = 2,861.62