Finding the Fourth Proportional to 1,728.30, 2,385.04 and 942.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.30 : 2,385.04 = 942.34 : x
2. Step 2: Convert to fraction form
   1,728.30/2,385.04 = 942.34/x
3. Step 3: Cross multiply
   1,728.30x = 2,385.04 × 942.34
4. Step 4: Simplify right side
   1,728.30x = 2,247,518.59
5. Step 5: Solve for x
   x = 2,247,518.59/1,728.30
6. Step 6: Final answer
   x = 1,300.42