Finding the Fourth Proportional to 1,314.01, 1,812.04 and 871.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.01 : 1,812.04 = 871.12 : x
2. Step 2: Convert to fraction form
   1,314.01/1,812.04 = 871.12/x
3. Step 3: Cross multiply
   1,314.01x = 1,812.04 × 871.12
4. Step 4: Simplify right side
   1,314.01x = 1,578,504.28
5. Step 5: Solve for x
   x = 1,578,504.28/1,314.01
6. Step 6: Final answer
   x = 1,201.29