Finding the Fourth Proportional to 1,531.71, 2,293.52 and 906.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.71 : 2,293.52 = 906.53 : x
2. Step 2: Convert to fraction form
   1,531.71/2,293.52 = 906.53/x
3. Step 3: Cross multiply
   1,531.71x = 2,293.52 × 906.53
4. Step 4: Simplify right side
   1,531.71x = 2,079,128.69
5. Step 5: Solve for x
   x = 2,079,128.69/1,531.71
6. Step 6: Final answer
   x = 1,357.39