Finding the Fourth Proportional to 1,408.48, 1,952.76 and 1,342.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.48 : 1,952.76 = 1,342.72 : x
2. Step 2: Convert to fraction form
   1,408.48/1,952.76 = 1,342.72/x
3. Step 3: Cross multiply
   1,408.48x = 1,952.76 × 1,342.72
4. Step 4: Simplify right side
   1,408.48x = 2,622,009.91
5. Step 5: Solve for x
   x = 2,622,009.91/1,408.48
6. Step 6: Final answer
   x = 1,861.59