Finding the Fourth Proportional to 2,280.96, 3,146.16 and 1,395.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.96 : 3,146.16 = 1,395.36 : x
2. Step 2: Convert to fraction form
   2,280.96/3,146.16 = 1,395.36/x
3. Step 3: Cross multiply
   2,280.96x = 3,146.16 × 1,395.36
4. Step 4: Simplify right side
   2,280.96x = 4,390,025.82
5. Step 5: Solve for x
   x = 4,390,025.82/2,280.96
6. Step 6: Final answer
   x = 1,924.64