Finding the Fourth Proportional to 2,520.46, 3,478.03 and 1,401.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.46 : 3,478.03 = 1,401.31 : x
2. Step 2: Convert to fraction form
   2,520.46/3,478.03 = 1,401.31/x
3. Step 3: Cross multiply
   2,520.46x = 3,478.03 × 1,401.31
4. Step 4: Simplify right side
   2,520.46x = 4,873,798.22
5. Step 5: Solve for x
   x = 4,873,798.22/2,520.46
6. Step 6: Final answer
   x = 1,933.69