Finding the Fourth Proportional to 2,323.17, 3,485.13 and 762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.17 : 3,485.13 = 762.72 : x
2. Step 2: Convert to fraction form
   2,323.17/3,485.13 = 762.72/x
3. Step 3: Cross multiply
   2,323.17x = 3,485.13 × 762.72
4. Step 4: Simplify right side
   2,323.17x = 2,658,178.35
5. Step 5: Solve for x
   x = 2,658,178.35/2,323.17
6. Step 6: Final answer
   x = 1,144.20