Finding the Fourth Proportional to 2,280.30, 3,420.49 and 1,505.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.30 : 3,420.49 = 1,505.27 : x
2. Step 2: Convert to fraction form
   2,280.30/3,420.49 = 1,505.27/x
3. Step 3: Cross multiply
   2,280.30x = 3,420.49 × 1,505.27
4. Step 4: Simplify right side
   2,280.30x = 5,148,748.67
5. Step 5: Solve for x
   x = 5,148,748.67/2,280.30
6. Step 6: Final answer
   x = 2,257.92