Finding the Fourth Proportional to 2,520.82, 3,478.85 and 1,401.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.82 : 3,478.85 = 1,401.72 : x
2. Step 2: Convert to fraction form
   2,520.82/3,478.85 = 1,401.72/x
3. Step 3: Cross multiply
   2,520.82x = 3,478.85 × 1,401.72
4. Step 4: Simplify right side
   2,520.82x = 4,876,378.39
5. Step 5: Solve for x
   x = 4,876,378.39/2,520.82
6. Step 6: Final answer
   x = 1,934.44