Finding the Fourth Proportional to 1,401.35, 1,966.75 and 1,401.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.35 : 1,966.75 = 1,401.35 : x
2. Step 2: Convert to fraction form
   1,401.35/1,966.75 = 1,401.35/x
3. Step 3: Cross multiply
   1,401.35x = 1,966.75 × 1,401.35
4. Step 4: Simplify right side
   1,401.35x = 2,756,105.11
5. Step 5: Solve for x
   x = 2,756,105.11/1,401.35
6. Step 6: Final answer
   x = 1,966.75