Finding the Fourth Proportional to 1,050.50, 1,576.72 and 530.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.50 : 1,576.72 = 530.86 : x
2. Step 2: Convert to fraction form
   1,050.50/1,576.72 = 530.86/x
3. Step 3: Cross multiply
   1,050.50x = 1,576.72 × 530.86
4. Step 4: Simplify right side
   1,050.50x = 837,020.18
5. Step 5: Solve for x
   x = 837,020.18/1,050.50
6. Step 6: Final answer
   x = 796.79