Finding the Fourth Proportional to 1,086.67, 1,499.48 and 614.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.67 : 1,499.48 = 614.51 : x
2. Step 2: Convert to fraction form
   1,086.67/1,499.48 = 614.51/x
3. Step 3: Cross multiply
   1,086.67x = 1,499.48 × 614.51
4. Step 4: Simplify right side
   1,086.67x = 921,442.81
5. Step 5: Solve for x
   x = 921,442.81/1,086.67
6. Step 6: Final answer
   x = 847.95