Finding the Fourth Proportional to 4,754.56, 7,131.72 and 1,291.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,754.56 : 7,131.72 = 1,291.72 : x
2. Step 2: Convert to fraction form
   4,754.56/7,131.72 = 1,291.72/x
3. Step 3: Cross multiply
   4,754.56x = 7,131.72 × 1,291.72
4. Step 4: Simplify right side
   4,754.56x = 9,212,185.36
5. Step 5: Solve for x
   x = 9,212,185.36/4,754.56
6. Step 6: Final answer
   x = 1,937.55