Finding the Fourth Proportional to 2,521.35, 3,480.62 and 1,513.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.35 : 3,480.62 = 1,513.53 : x
2. Step 2: Convert to fraction form
   2,521.35/3,480.62 = 1,513.53/x
3. Step 3: Cross multiply
   2,521.35x = 3,480.62 × 1,513.53
4. Step 4: Simplify right side
   2,521.35x = 5,268,015.22
5. Step 5: Solve for x
   x = 5,268,015.22/2,521.35
6. Step 6: Final answer
   x = 2,089.36