Finding the Fourth Proportional to 1,086.22, 1,627.94 and 469.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.22 : 1,627.94 = 469.18 : x
2. Step 2: Convert to fraction form
   1,086.22/1,627.94 = 469.18/x
3. Step 3: Cross multiply
   1,086.22x = 1,627.94 × 469.18
4. Step 4: Simplify right side
   1,086.22x = 763,796.89
5. Step 5: Solve for x
   x = 763,796.89/1,086.22
6. Step 6: Final answer
   x = 703.17