Finding the Fourth Proportional to 3,670.72, 5,495.76 and 2,280

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670.72 : 5,495.76 = 2,280 : x
2. Step 2: Convert to fraction form
   3,670.72/5,495.76 = 2,280/x
3. Step 3: Cross multiply
   3,670.72x = 5,495.76 × 2,280
4. Step 4: Simplify right side
   3,670.72x = 12,530,332.80
5. Step 5: Solve for x
   x = 12,530,332.80/3,670.72
6. Step 6: Final answer
   x = 3,413.59