Finding the Fourth Proportional to 1,131.55, 1,696.74 and 351.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.55 : 1,696.74 = 351.34 : x
2. Step 2: Convert to fraction form
   1,131.55/1,696.74 = 351.34/x
3. Step 3: Cross multiply
   1,131.55x = 1,696.74 × 351.34
4. Step 4: Simplify right side
   1,131.55x = 596,132.63
5. Step 5: Solve for x
   x = 596,132.63/1,131.55
6. Step 6: Final answer
   x = 526.83