Finding the Fourth Proportional to 2,520.34, 3,478.08 and 1,401.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.34 : 3,478.08 = 1,401.38 : x
2. Step 2: Convert to fraction form
   2,520.34/3,478.08 = 1,401.38/x
3. Step 3: Cross multiply
   2,520.34x = 3,478.08 × 1,401.38
4. Step 4: Simplify right side
   2,520.34x = 4,874,111.75
5. Step 5: Solve for x
   x = 4,874,111.75/2,520.34
6. Step 6: Final answer
   x = 1,933.91