Finding the Fourth Proportional to 1,314.27, 1,972.35 and 906.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.27 : 1,972.35 = 906.30 : x
2. Step 2: Convert to fraction form
   1,314.27/1,972.35 = 906.30/x
3. Step 3: Cross multiply
   1,314.27x = 1,972.35 × 906.30
4. Step 4: Simplify right side
   1,314.27x = 1,787,540.81
5. Step 5: Solve for x
   x = 1,787,540.81/1,314.27
6. Step 6: Final answer
   x = 1,360.10