Finding the Fourth Proportional to 1,086.72, 1,627.26 and 598.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.72 : 1,627.26 = 598.76 : x
2. Step 2: Convert to fraction form
   1,086.72/1,627.26 = 598.76/x
3. Step 3: Cross multiply
   1,086.72x = 1,627.26 × 598.76
4. Step 4: Simplify right side
   1,086.72x = 974,338.20
5. Step 5: Solve for x
   x = 974,338.20/1,086.72
6. Step 6: Final answer
   x = 896.59