Finding the Fourth Proportional to 2,664.38, 3,680.43 and 2,415.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.38 : 3,680.43 = 2,415.98 : x
2. Step 2: Convert to fraction form
   2,664.38/3,680.43 = 2,415.98/x
3. Step 3: Cross multiply
   2,664.38x = 3,680.43 × 2,415.98
4. Step 4: Simplify right side
   2,664.38x = 8,891,845.27
5. Step 5: Solve for x
   x = 8,891,845.27/2,664.38
6. Step 6: Final answer
   x = 3,337.30