Finding the Fourth Proportional to 2,373.99, 3,561.26 and 912.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,373.99 : 3,561.26 = 912.89 : x
2. Step 2: Convert to fraction form
   2,373.99/3,561.26 = 912.89/x
3. Step 3: Cross multiply
   2,373.99x = 3,561.26 × 912.89
4. Step 4: Simplify right side
   2,373.99x = 3,251,016.27
5. Step 5: Solve for x
   x = 3,251,016.27/2,373.99
6. Step 6: Final answer
   x = 1,369.43