Finding the Fourth Proportional to 2,522.30, 3,480.98 and 1,403.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.30 : 3,480.98 = 1,403.20 : x
2. Step 2: Convert to fraction form
   2,522.30/3,480.98 = 1,403.20/x
3. Step 3: Cross multiply
   2,522.30x = 3,480.98 × 1,403.20
4. Step 4: Simplify right side
   2,522.30x = 4,884,511.14
5. Step 5: Solve for x
   x = 4,884,511.14/2,522.30
6. Step 6: Final answer
   x = 1,936.53