Finding the Fourth Proportional to 1,054.58, 1,580.88 and 567.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.58 : 1,580.88 = 567.68 : x
2. Step 2: Convert to fraction form
   1,054.58/1,580.88 = 567.68/x
3. Step 3: Cross multiply
   1,054.58x = 1,580.88 × 567.68
4. Step 4: Simplify right side
   1,054.58x = 897,433.96
5. Step 5: Solve for x
   x = 897,433.96/1,054.58
6. Step 6: Final answer
   x = 850.99