Finding the Fourth Proportional to 1,408.72, 1,932.69 and 1,372.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.72 : 1,932.69 = 1,372.34 : x
2. Step 2: Convert to fraction form
   1,408.72/1,932.69 = 1,372.34/x
3. Step 3: Cross multiply
   1,408.72x = 1,932.69 × 1,372.34
4. Step 4: Simplify right side
   1,408.72x = 2,652,306.19
5. Step 5: Solve for x
   x = 2,652,306.19/1,408.72
6. Step 6: Final answer
   x = 1,882.78