Finding the Fourth Proportional to 1,017.31, 1,526.01 and 555.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.31 : 1,526.01 = 555.34 : x
2. Step 2: Convert to fraction form
   1,017.31/1,526.01 = 555.34/x
3. Step 3: Cross multiply
   1,017.31x = 1,526.01 × 555.34
4. Step 4: Simplify right side
   1,017.31x = 847,454.39
5. Step 5: Solve for x
   x = 847,454.39/1,017.31
6. Step 6: Final answer
   x = 833.03