Finding the Fourth Proportional to 942.42, 1,300.59 and 549.42

Step by Step Solution

1. Step 1: Write the proportion equation
   942.42 : 1,300.59 = 549.42 : x
2. Step 2: Convert to fraction form
   942.42/1,300.59 = 549.42/x
3. Step 3: Cross multiply
   942.42x = 1,300.59 × 549.42
4. Step 4: Simplify right side
   942.42x = 714,570.16
5. Step 5: Solve for x
   x = 714,570.16/942.42
6. Step 6: Final answer
   x = 758.23