Finding the Fourth Proportional to 2,520.46, 3,478.17 and 1,401.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.46 : 3,478.17 = 1,401.34 : x
2. Step 2: Convert to fraction form
   2,520.46/3,478.17 = 1,401.34/x
3. Step 3: Cross multiply
   2,520.46x = 3,478.17 × 1,401.34
4. Step 4: Simplify right side
   2,520.46x = 4,874,098.75
5. Step 5: Solve for x
   x = 4,874,098.75/2,520.46
6. Step 6: Final answer
   x = 1,933.81