Finding the Fourth Proportional to 1,728.72, 2,592.12 and 701.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.72 : 2,592.12 = 701.52 : x
2. Step 2: Convert to fraction form
   1,728.72/2,592.12 = 701.52/x
3. Step 3: Cross multiply
   1,728.72x = 2,592.12 × 701.52
4. Step 4: Simplify right side
   1,728.72x = 1,818,424.02
5. Step 5: Solve for x
   x = 1,818,424.02/1,728.72
6. Step 6: Final answer
   x = 1,051.89