Finding the Fourth Proportional to 2,520.46, 3,478.32 and 1,401.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.46 : 3,478.32 = 1,401.42 : x
2. Step 2: Convert to fraction form
   2,520.46/3,478.32 = 1,401.42/x
3. Step 3: Cross multiply
   2,520.46x = 3,478.32 × 1,401.42
4. Step 4: Simplify right side
   2,520.46x = 4,874,587.21
5. Step 5: Solve for x
   x = 4,874,587.21/2,520.46
6. Step 6: Final answer
   x = 1,934.01