Finding the Fourth Proportional to 2,465.82, 3,700.86 and 1,280.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,465.82 : 3,700.86 = 1,280.67 : x
2. Step 2: Convert to fraction form
   2,465.82/3,700.86 = 1,280.67/x
3. Step 3: Cross multiply
   2,465.82x = 3,700.86 × 1,280.67
4. Step 4: Simplify right side
   2,465.82x = 4,739,580.38
5. Step 5: Solve for x
   x = 4,739,580.38/2,465.82
6. Step 6: Final answer
   x = 1,922.11