Finding the Fourth Proportional to 1,371.22, 1,891.25 and 951.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.22 : 1,891.25 = 951.57 : x
2. Step 2: Convert to fraction form
   1,371.22/1,891.25 = 951.57/x
3. Step 3: Cross multiply
   1,371.22x = 1,891.25 × 951.57
4. Step 4: Simplify right side
   1,371.22x = 1,799,652.00
5. Step 5: Solve for x
   x = 1,799,652.00/1,371.22
6. Step 6: Final answer
   x = 1,312.45