Finding the Fourth Proportional to 1,045.56, 1,565.82 and 871.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.56 : 1,565.82 = 871.14 : x
2. Step 2: Convert to fraction form
   1,045.56/1,565.82 = 871.14/x
3. Step 3: Cross multiply
   1,045.56x = 1,565.82 × 871.14
4. Step 4: Simplify right side
   1,045.56x = 1,364,048.43
5. Step 5: Solve for x
   x = 1,364,048.43/1,045.56
6. Step 6: Final answer
   x = 1,304.61