Finding the Fourth Proportional to 1,131.06, 1,696.62 and 309.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.06 : 1,696.62 = 309.34 : x
2. Step 2: Convert to fraction form
   1,131.06/1,696.62 = 309.34/x
3. Step 3: Cross multiply
   1,131.06x = 1,696.62 × 309.34
4. Step 4: Simplify right side
   1,131.06x = 524,832.43
5. Step 5: Solve for x
   x = 524,832.43/1,131.06
6. Step 6: Final answer
   x = 464.02