Finding the Fourth Proportional to 1,076.50, 1,614.78 and 346.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.50 : 1,614.78 = 346.15 : x
2. Step 2: Convert to fraction form
   1,076.50/1,614.78 = 346.15/x
3. Step 3: Cross multiply
   1,076.50x = 1,614.78 × 346.15
4. Step 4: Simplify right side
   1,076.50x = 558,956.10
5. Step 5: Solve for x
   x = 558,956.10/1,076.50
6. Step 6: Final answer
   x = 519.23