Finding the Fourth Proportional to 1,256.78, 1,882.42 and 606.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.78 : 1,882.42 = 606.14 : x
2. Step 2: Convert to fraction form
   1,256.78/1,882.42 = 606.14/x
3. Step 3: Cross multiply
   1,256.78x = 1,882.42 × 606.14
4. Step 4: Simplify right side
   1,256.78x = 1,141,013.25
5. Step 5: Solve for x
   x = 1,141,013.25/1,256.78
6. Step 6: Final answer
   x = 907.89