Finding the Fourth Proportional to 2,280.50, 3,146.29 and 1,440.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.50 : 3,146.29 = 1,440.94 : x
2. Step 2: Convert to fraction form
   2,280.50/3,146.29 = 1,440.94/x
3. Step 3: Cross multiply
   2,280.50x = 3,146.29 × 1,440.94
4. Step 4: Simplify right side
   2,280.50x = 4,533,617.65
5. Step 5: Solve for x
   x = 4,533,617.65/2,280.50
6. Step 6: Final answer
   x = 1,987.99