Finding the Fourth Proportional to 1,371.42, 1,892.52 and 906.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.42 : 1,892.52 = 906.48 : x
2. Step 2: Convert to fraction form
   1,371.42/1,892.52 = 906.48/x
3. Step 3: Cross multiply
   1,371.42x = 1,892.52 × 906.48
4. Step 4: Simplify right side
   1,371.42x = 1,715,531.53
5. Step 5: Solve for x
   x = 1,715,531.53/1,371.42
6. Step 6: Final answer
   x = 1,250.92