Finding the Fourth Proportional to 1,066.37, 1,592.35 and 871.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.37 : 1,592.35 = 871.75 : x
2. Step 2: Convert to fraction form
   1,066.37/1,592.35 = 871.75/x
3. Step 3: Cross multiply
   1,066.37x = 1,592.35 × 871.75
4. Step 4: Simplify right side
   1,066.37x = 1,388,123.15
5. Step 5: Solve for x
   x = 1,388,123.15/1,066.37
6. Step 6: Final answer
   x = 1,301.73