Finding the Fourth Proportional to 1,388.34, 2,081.79 and 566.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388.34 : 2,081.79 = 566.15 : x
2. Step 2: Convert to fraction form
   1,388.34/2,081.79 = 566.15/x
3. Step 3: Cross multiply
   1,388.34x = 2,081.79 × 566.15
4. Step 4: Simplify right side
   1,388.34x = 1,178,595.00
5. Step 5: Solve for x
   x = 1,178,595.00/1,388.34
6. Step 6: Final answer
   x = 848.92