Finding the Fourth Proportional to 1,342.72, 1,852.92 and 950.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.72 : 1,852.92 = 950.40 : x
2. Step 2: Convert to fraction form
   1,342.72/1,852.92 = 950.40/x
3. Step 3: Cross multiply
   1,342.72x = 1,852.92 × 950.40
4. Step 4: Simplify right side
   1,342.72x = 1,761,015.17
5. Step 5: Solve for x
   x = 1,761,015.17/1,342.72
6. Step 6: Final answer
   x = 1,311.53