Finding the Fourth Proportional to 1,388.83, 2,081.88 and 567.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388.83 : 2,081.88 = 567.34 : x
2. Step 2: Convert to fraction form
   1,388.83/2,081.88 = 567.34/x
3. Step 3: Cross multiply
   1,388.83x = 2,081.88 × 567.34
4. Step 4: Simplify right side
   1,388.83x = 1,181,133.80
5. Step 5: Solve for x
   x = 1,181,133.80/1,388.83
6. Step 6: Final answer
   x = 850.45