Finding the Fourth Proportional to 1,050.98, 1,575.56 and 530.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.98 : 1,575.56 = 530.55 : x
2. Step 2: Convert to fraction form
   1,050.98/1,575.56 = 530.55/x
3. Step 3: Cross multiply
   1,050.98x = 1,575.56 × 530.55
4. Step 4: Simplify right side
   1,050.98x = 835,902.83
5. Step 5: Solve for x
   x = 835,902.83/1,050.98
6. Step 6: Final answer
   x = 795.36