Finding the Fourth Proportional to 1,370.37, 1,890.50 and 951.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,370.37 : 1,890.50 = 951.72 : x
2. Step 2: Convert to fraction form
   1,370.37/1,890.50 = 951.72/x
3. Step 3: Cross multiply
   1,370.37x = 1,890.50 × 951.72
4. Step 4: Simplify right side
   1,370.37x = 1,799,237.45
5. Step 5: Solve for x
   x = 1,799,237.45/1,370.37
6. Step 6: Final answer
   x = 1,312.96