Finding the Fourth Proportional to 1,034.57, 1,551.45 and 418.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.57 : 1,551.45 = 418.10 : x
2. Step 2: Convert to fraction form
   1,034.57/1,551.45 = 418.10/x
3. Step 3: Cross multiply
   1,034.57x = 1,551.45 × 418.10
4. Step 4: Simplify right side
   1,034.57x = 648,661.25
5. Step 5: Solve for x
   x = 648,661.25/1,034.57
6. Step 6: Final answer
   x = 626.99