Finding the Fourth Proportional to 1,147.25, 1,721.13 and 367.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147.25 : 1,721.13 = 367.31 : x
2. Step 2: Convert to fraction form
   1,147.25/1,721.13 = 367.31/x
3. Step 3: Cross multiply
   1,147.25x = 1,721.13 × 367.31
4. Step 4: Simplify right side
   1,147.25x = 632,192.56
5. Step 5: Solve for x
   x = 632,192.56/1,147.25
6. Step 6: Final answer
   x = 551.05