Finding the Fourth Proportional to 1,383.90, 1,907.52 and 1,010.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.90 : 1,907.52 = 1,010.94 : x
2. Step 2: Convert to fraction form
   1,383.90/1,907.52 = 1,010.94/x
3. Step 3: Cross multiply
   1,383.90x = 1,907.52 × 1,010.94
4. Step 4: Simplify right side
   1,383.90x = 1,928,388.27
5. Step 5: Solve for x
   x = 1,928,388.27/1,383.90
6. Step 6: Final answer
   x = 1,393.44