Finding the Fourth Proportional to 2,520.95, 3,478.86 and 1,401.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.95 : 3,478.86 = 1,401.84 : x
2. Step 2: Convert to fraction form
   2,520.95/3,478.86 = 1,401.84/x
3. Step 3: Cross multiply
   2,520.95x = 3,478.86 × 1,401.84
4. Step 4: Simplify right side
   2,520.95x = 4,876,805.10
5. Step 5: Solve for x
   x = 4,876,805.10/2,520.95
6. Step 6: Final answer
   x = 1,934.51