Finding the Fourth Proportional to 1,731.88, 2,598.54 and 757.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,731.88 : 2,598.54 = 757.72 : x
2. Step 2: Convert to fraction form
   1,731.88/2,598.54 = 757.72/x
3. Step 3: Cross multiply
   1,731.88x = 2,598.54 × 757.72
4. Step 4: Simplify right side
   1,731.88x = 1,968,965.73
5. Step 5: Solve for x
   x = 1,968,965.73/1,731.88
6. Step 6: Final answer
   x = 1,136.90