Finding the Fourth Proportional to 1,061.46, 1,591.80 and 367.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.46 : 1,591.80 = 367.92 : x
2. Step 2: Convert to fraction form
   1,061.46/1,591.80 = 367.92/x
3. Step 3: Cross multiply
   1,061.46x = 1,591.80 × 367.92
4. Step 4: Simplify right side
   1,061.46x = 585,655.06
5. Step 5: Solve for x
   x = 585,655.06/1,061.46
6. Step 6: Final answer
   x = 551.74