Finding the Fourth Proportional to 1,061.12, 1,591.52 and 367.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.12 : 1,591.52 = 367.68 : x
2. Step 2: Convert to fraction form
   1,061.12/1,591.52 = 367.68/x
3. Step 3: Cross multiply
   1,061.12x = 1,591.52 × 367.68
4. Step 4: Simplify right side
   1,061.12x = 585,170.07
5. Step 5: Solve for x
   x = 585,170.07/1,061.12
6. Step 6: Final answer
   x = 551.46