Finding the Fourth Proportional to 1,728.52, 2,385.38 and 942.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.52 : 2,385.38 = 942.58 : x
2. Step 2: Convert to fraction form
   1,728.52/2,385.38 = 942.58/x
3. Step 3: Cross multiply
   1,728.52x = 2,385.38 × 942.58
4. Step 4: Simplify right side
   1,728.52x = 2,248,411.48
5. Step 5: Solve for x
   x = 2,248,411.48/1,728.52
6. Step 6: Final answer
   x = 1,300.77