Finding the Fourth Proportional to 1,032.34, 1,546.69 and 857.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,032.34 : 1,546.69 = 857.99 : x
2. Step 2: Convert to fraction form
   1,032.34/1,546.69 = 857.99/x
3. Step 3: Cross multiply
   1,032.34x = 1,546.69 × 857.99
4. Step 4: Simplify right side
   1,032.34x = 1,327,044.55
5. Step 5: Solve for x
   x = 1,327,044.55/1,032.34
6. Step 6: Final answer
   x = 1,285.47