Finding the Fourth Proportional to 1,167.78, 1,751.42 and 474.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.78 : 1,751.42 = 474.27 : x
2. Step 2: Convert to fraction form
   1,167.78/1,751.42 = 474.27/x
3. Step 3: Cross multiply
   1,167.78x = 1,751.42 × 474.27
4. Step 4: Simplify right side
   1,167.78x = 830,650.43
5. Step 5: Solve for x
   x = 830,650.43/1,167.78
6. Step 6: Final answer
   x = 711.31