Finding the Fourth Proportional to 2,471.38, 3,685.63 and 2,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,471.38 : 3,685.63 = 2,108.50 : x
2. Step 2: Convert to fraction form
   2,471.38/3,685.63 = 2,108.50/x
3. Step 3: Cross multiply
   2,471.38x = 3,685.63 × 2,108.50
4. Step 4: Simplify right side
   2,471.38x = 7,771,140.31
5. Step 5: Solve for x
   x = 7,771,140.31/2,471.38
6. Step 6: Final answer
   x = 3,144.45