Finding the Fourth Proportional to 1,059.10, 1,585.72 and 798.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.10 : 1,585.72 = 798.31 : x
2. Step 2: Convert to fraction form
   1,059.10/1,585.72 = 798.31/x
3. Step 3: Cross multiply
   1,059.10x = 1,585.72 × 798.31
4. Step 4: Simplify right side
   1,059.10x = 1,265,896.12
5. Step 5: Solve for x
   x = 1,265,896.12/1,059.10
6. Step 6: Final answer
   x = 1,195.26