Finding the Fourth Proportional to 2,520.48, 3,478.32 and 1,401.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.48 : 3,478.32 = 1,401.48 : x
2. Step 2: Convert to fraction form
   2,520.48/3,478.32 = 1,401.48/x
3. Step 3: Cross multiply
   2,520.48x = 3,478.32 × 1,401.48
4. Step 4: Simplify right side
   2,520.48x = 4,874,795.91
5. Step 5: Solve for x
   x = 4,874,795.91/2,520.48
6. Step 6: Final answer
   x = 1,934.07