Finding the Fourth Proportional to 1,634.46, 2,254.71 and 1,012.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,634.46 : 2,254.71 = 1,012.38 : x
2. Step 2: Convert to fraction form
   1,634.46/2,254.71 = 1,012.38/x
3. Step 3: Cross multiply
   1,634.46x = 2,254.71 × 1,012.38
4. Step 4: Simplify right side
   1,634.46x = 2,282,623.31
5. Step 5: Solve for x
   x = 2,282,623.31/1,634.46
6. Step 6: Final answer
   x = 1,396.56