Finding the Fourth Proportional to 2,522.16, 3,480.60 and 1,403.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.16 : 3,480.60 = 1,403.12 : x
2. Step 2: Convert to fraction form
   2,522.16/3,480.60 = 1,403.12/x
3. Step 3: Cross multiply
   2,522.16x = 3,480.60 × 1,403.12
4. Step 4: Simplify right side
   2,522.16x = 4,883,699.47
5. Step 5: Solve for x
   x = 4,883,699.47/2,522.16
6. Step 6: Final answer
   x = 1,936.32