Finding the Fourth Proportional to 1,061.08, 1,591.78 and 367.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.08 : 1,591.78 = 367.92 : x
2. Step 2: Convert to fraction form
   1,061.08/1,591.78 = 367.92/x
3. Step 3: Cross multiply
   1,061.08x = 1,591.78 × 367.92
4. Step 4: Simplify right side
   1,061.08x = 585,647.70
5. Step 5: Solve for x
   x = 585,647.70/1,061.08
6. Step 6: Final answer
   x = 551.94