Finding the Fourth Proportional to 1,017.82, 1,526.82 and 555.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.82 : 1,526.82 = 555.40 : x
2. Step 2: Convert to fraction form
   1,017.82/1,526.82 = 555.40/x
3. Step 3: Cross multiply
   1,017.82x = 1,526.82 × 555.40
4. Step 4: Simplify right side
   1,017.82x = 847,995.83
5. Step 5: Solve for x
   x = 847,995.83/1,017.82
6. Step 6: Final answer
   x = 833.15