Finding the Fourth Proportional to 3,480.96, 5,223.54 and 1,401.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,480.96 : 5,223.54 = 1,401.42 : x
2. Step 2: Convert to fraction form
   3,480.96/5,223.54 = 1,401.42/x
3. Step 3: Cross multiply
   3,480.96x = 5,223.54 × 1,401.42
4. Step 4: Simplify right side
   3,480.96x = 7,320,373.43
5. Step 5: Solve for x
   x = 7,320,373.43/3,480.96
6. Step 6: Final answer
   x = 2,102.98