Finding the Fourth Proportional to 1,086.37, 1,499.19 and 614.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.37 : 1,499.19 = 614.38 : x
2. Step 2: Convert to fraction form
   1,086.37/1,499.19 = 614.38/x
3. Step 3: Cross multiply
   1,086.37x = 1,499.19 × 614.38
4. Step 4: Simplify right side
   1,086.37x = 921,072.35
5. Step 5: Solve for x
   x = 921,072.35/1,086.37
6. Step 6: Final answer
   x = 847.84