Finding the Fourth Proportional to 2,520.25, 3,476.82 and 1,680.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.25 : 3,476.82 = 1,680.13 : x
2. Step 2: Convert to fraction form
   2,520.25/3,476.82 = 1,680.13/x
3. Step 3: Cross multiply
   2,520.25x = 3,476.82 × 1,680.13
4. Step 4: Simplify right side
   2,520.25x = 5,841,509.59
5. Step 5: Solve for x
   x = 5,841,509.59/2,520.25
6. Step 6: Final answer
   x = 2,317.83