Finding the Fourth Proportional to 1,086.16, 1,626.45 and 598.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.16 : 1,626.45 = 598.67 : x
2. Step 2: Convert to fraction form
   1,086.16/1,626.45 = 598.67/x
3. Step 3: Cross multiply
   1,086.16x = 1,626.45 × 598.67
4. Step 4: Simplify right side
   1,086.16x = 973,700.19
5. Step 5: Solve for x
   x = 973,700.19/1,086.16
6. Step 6: Final answer
   x = 896.47