Finding the Fourth Proportional to 1,523.89, 2,102.92 and 851.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,523.89 : 2,102.92 = 851.72 : x
2. Step 2: Convert to fraction form
   1,523.89/2,102.92 = 851.72/x
3. Step 3: Cross multiply
   1,523.89x = 2,102.92 × 851.72
4. Step 4: Simplify right side
   1,523.89x = 1,791,086.38
5. Step 5: Solve for x
   x = 1,791,086.38/1,523.89
6. Step 6: Final answer
   x = 1,175.34