Finding the Fourth Proportional to 1,075.56, 1,484.22 and 609.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.56 : 1,484.22 = 609.96 : x
2. Step 2: Convert to fraction form
   1,075.56/1,484.22 = 609.96/x
3. Step 3: Cross multiply
   1,075.56x = 1,484.22 × 609.96
4. Step 4: Simplify right side
   1,075.56x = 905,314.83
5. Step 5: Solve for x
   x = 905,314.83/1,075.56
6. Step 6: Final answer
   x = 841.71