Finding the Fourth Proportional to 2,373.78, 3,561.27 and 912.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,373.78 : 3,561.27 = 912.54 : x
2. Step 2: Convert to fraction form
   2,373.78/3,561.27 = 912.54/x
3. Step 3: Cross multiply
   2,373.78x = 3,561.27 × 912.54
4. Step 4: Simplify right side
   2,373.78x = 3,249,801.33
5. Step 5: Solve for x
   x = 3,249,801.33/2,373.78
6. Step 6: Final answer
   x = 1,369.04