Finding the Fourth Proportional to 1,086.34, 1,499.10 and 614.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.34 : 1,499.10 = 614.18 : x
2. Step 2: Convert to fraction form
   1,086.34/1,499.10 = 614.18/x
3. Step 3: Cross multiply
   1,086.34x = 1,499.10 × 614.18
4. Step 4: Simplify right side
   1,086.34x = 920,717.24
5. Step 5: Solve for x
   x = 920,717.24/1,086.34
6. Step 6: Final answer
   x = 847.54