Finding the Fourth Proportional to 2,520.99, 3,478.93 and 1,401.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.99 : 3,478.93 = 1,401.89 : x
2. Step 2: Convert to fraction form
   2,520.99/3,478.93 = 1,401.89/x
3. Step 3: Cross multiply
   2,520.99x = 3,478.93 × 1,401.89
4. Step 4: Simplify right side
   2,520.99x = 4,877,056.28
5. Step 5: Solve for x
   x = 4,877,056.28/2,520.99
6. Step 6: Final answer
   x = 1,934.58