Finding the Fourth Proportional to 1,371.32, 1,890.78 and 951.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.32 : 1,890.78 = 951.35 : x
2. Step 2: Convert to fraction form
   1,371.32/1,890.78 = 951.35/x
3. Step 3: Cross multiply
   1,371.32x = 1,890.78 × 951.35
4. Step 4: Simplify right side
   1,371.32x = 1,798,784.10
5. Step 5: Solve for x
   x = 1,798,784.10/1,371.32
6. Step 6: Final answer
   x = 1,311.72