Finding the Fourth Proportional to 1,075.18, 1,613.31 and 801.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.18 : 1,613.31 = 801.82 : x
2. Step 2: Convert to fraction form
   1,075.18/1,613.31 = 801.82/x
3. Step 3: Cross multiply
   1,075.18x = 1,613.31 × 801.82
4. Step 4: Simplify right side
   1,075.18x = 1,293,584.22
5. Step 5: Solve for x
   x = 1,293,584.22/1,075.18
6. Step 6: Final answer
   x = 1,203.13