Finding the Fourth Proportional to 1,344, 1,854.72 and 1,034.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344 : 1,854.72 = 1,034.40 : x
2. Step 2: Convert to fraction form
   1,344/1,854.72 = 1,034.40/x
3. Step 3: Cross multiply
   1,344x = 1,854.72 × 1,034.40
4. Step 4: Simplify right side
   1,344x = 1,918,522.37
5. Step 5: Solve for x
   x = 1,918,522.37/1,344
6. Step 6: Final answer
   x = 1,427.47