Finding the Fourth Proportional to 2,017.74, 3,026.25 and 557.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.74 : 3,026.25 = 557.10 : x
2. Step 2: Convert to fraction form
   2,017.74/3,026.25 = 557.10/x
3. Step 3: Cross multiply
   2,017.74x = 3,026.25 × 557.10
4. Step 4: Simplify right side
   2,017.74x = 1,685,923.88
5. Step 5: Solve for x
   x = 1,685,923.88/2,017.74
6. Step 6: Final answer
   x = 835.55