Finding the Fourth Proportional to 942.63, 1,300.83 and 549.91

Step by Step Solution

1. Step 1: Write the proportion equation
   942.63 : 1,300.83 = 549.91 : x
2. Step 2: Convert to fraction form
   942.63/1,300.83 = 549.91/x
3. Step 3: Cross multiply
   942.63x = 1,300.83 × 549.91
4. Step 4: Simplify right side
   942.63x = 715,339.43
5. Step 5: Solve for x
   x = 715,339.43/942.63
6. Step 6: Final answer
   x = 758.88