Finding the Fourth Proportional to 1,383.78, 2,075.71 and 562.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.78 : 2,075.71 = 562.03 : x
2. Step 2: Convert to fraction form
   1,383.78/2,075.71 = 562.03/x
3. Step 3: Cross multiply
   1,383.78x = 2,075.71 × 562.03
4. Step 4: Simplify right side
   1,383.78x = 1,166,609.89
5. Step 5: Solve for x
   x = 1,166,609.89/1,383.78
6. Step 6: Final answer
   x = 843.06