Finding the Fourth Proportional to 1,086.22, 1,498.94 and 614.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.22 : 1,498.94 = 614.06 : x
2. Step 2: Convert to fraction form
   1,086.22/1,498.94 = 614.06/x
3. Step 3: Cross multiply
   1,086.22x = 1,498.94 × 614.06
4. Step 4: Simplify right side
   1,086.22x = 920,439.10
5. Step 5: Solve for x
   x = 920,439.10/1,086.22
6. Step 6: Final answer
   x = 847.38