Finding the Fourth Proportional to 1,075.15, 1,609.98 and 708.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.15 : 1,609.98 = 708.82 : x
2. Step 2: Convert to fraction form
   1,075.15/1,609.98 = 708.82/x
3. Step 3: Cross multiply
   1,075.15x = 1,609.98 × 708.82
4. Step 4: Simplify right side
   1,075.15x = 1,141,186.02
5. Step 5: Solve for x
   x = 1,141,186.02/1,075.15
6. Step 6: Final answer
   x = 1,061.42