Finding the Fourth Proportional to 1,294.72, 1,941.62 and 417.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,294.72 : 1,941.62 = 417.18 : x
2. Step 2: Convert to fraction form
   1,294.72/1,941.62 = 417.18/x
3. Step 3: Cross multiply
   1,294.72x = 1,941.62 × 417.18
4. Step 4: Simplify right side
   1,294.72x = 810,002.95
5. Step 5: Solve for x
   x = 810,002.95/1,294.72
6. Step 6: Final answer
   x = 625.62