Finding the Fourth Proportional to 2,715.78, 3,750.42 and 2,320.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.78 : 3,750.42 = 2,320.50 : x
2. Step 2: Convert to fraction form
   2,715.78/3,750.42 = 2,320.50/x
3. Step 3: Cross multiply
   2,715.78x = 3,750.42 × 2,320.50
4. Step 4: Simplify right side
   2,715.78x = 8,702,849.61
5. Step 5: Solve for x
   x = 8,702,849.61/2,715.78
6. Step 6: Final answer
   x = 3,204.55