Finding the Fourth Proportional to 1,383.47, 1,907.86 and 1,068.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.47 : 1,907.86 = 1,068.23 : x
2. Step 2: Convert to fraction form
   1,383.47/1,907.86 = 1,068.23/x
3. Step 3: Cross multiply
   1,383.47x = 1,907.86 × 1,068.23
4. Step 4: Simplify right side
   1,383.47x = 2,038,018.41
5. Step 5: Solve for x
   x = 2,038,018.41/1,383.47
6. Step 6: Final answer
   x = 1,473.13