Finding the Fourth Proportional to 1,728.66, 2,385.50 and 942.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.66 : 2,385.50 = 942.71 : x
2. Step 2: Convert to fraction form
   1,728.66/2,385.50 = 942.71/x
3. Step 3: Cross multiply
   1,728.66x = 2,385.50 × 942.71
4. Step 4: Simplify right side
   1,728.66x = 2,248,823.37
5. Step 5: Solve for x
   x = 2,248,823.37/1,728.66
6. Step 6: Final answer
   x = 1,300.91