Finding the Fourth Proportional to 2,520.47, 3,478.23 and 1,401.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.47 : 3,478.23 = 1,401.53 : x
2. Step 2: Convert to fraction form
   2,520.47/3,478.23 = 1,401.53/x
3. Step 3: Cross multiply
   2,520.47x = 3,478.23 × 1,401.53
4. Step 4: Simplify right side
   2,520.47x = 4,874,826.30
5. Step 5: Solve for x
   x = 4,874,826.30/2,520.47
6. Step 6: Final answer
   x = 1,934.10