Finding the Fourth Proportional to 2,266.79, 3,128.32 and 1,382.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,266.79 : 3,128.32 = 1,382.47 : x
2. Step 2: Convert to fraction form
   2,266.79/3,128.32 = 1,382.47/x
3. Step 3: Cross multiply
   2,266.79x = 3,128.32 × 1,382.47
4. Step 4: Simplify right side
   2,266.79x = 4,324,802.46
5. Step 5: Solve for x
   x = 4,324,802.46/2,266.79
6. Step 6: Final answer
   x = 1,907.90