Finding the Fourth Proportional to 1,728.53, 2,385.36 and 942.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.53 : 2,385.36 = 942.56 : x
2. Step 2: Convert to fraction form
   1,728.53/2,385.36 = 942.56/x
3. Step 3: Cross multiply
   1,728.53x = 2,385.36 × 942.56
4. Step 4: Simplify right side
   1,728.53x = 2,248,350.89
5. Step 5: Solve for x
   x = 2,248,350.89/1,728.53
6. Step 6: Final answer
   x = 1,300.73