Finding the Fourth Proportional to 1,401.36, 1,929.48 and 1,271.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.36 : 1,929.48 = 1,271.76 : x
2. Step 2: Convert to fraction form
   1,401.36/1,929.48 = 1,271.76/x
3. Step 3: Cross multiply
   1,401.36x = 1,929.48 × 1,271.76
4. Step 4: Simplify right side
   1,401.36x = 2,453,835.48
5. Step 5: Solve for x
   x = 2,453,835.48/1,401.36
6. Step 6: Final answer
   x = 1,751.04