Finding the Fourth Proportional to 2,261.49, 3,123.42 and 1,910.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,261.49 : 3,123.42 = 1,910.38 : x
2. Step 2: Convert to fraction form
   2,261.49/3,123.42 = 1,910.38/x
3. Step 3: Cross multiply
   2,261.49x = 3,123.42 × 1,910.38
4. Step 4: Simplify right side
   2,261.49x = 5,966,919.10
5. Step 5: Solve for x
   x = 5,966,919.10/2,261.49
6. Step 6: Final answer
   x = 2,638.49