Finding the Fourth Proportional to 1,131.52, 1,696.88 and 514.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.52 : 1,696.88 = 514.72 : x
2. Step 2: Convert to fraction form
   1,131.52/1,696.88 = 514.72/x
3. Step 3: Cross multiply
   1,131.52x = 1,696.88 × 514.72
4. Step 4: Simplify right side
   1,131.52x = 873,418.07
5. Step 5: Solve for x
   x = 873,418.07/1,131.52
6. Step 6: Final answer
   x = 771.90