Finding the Fourth Proportional to 2,431.59, 3,651.02 and 1,392.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431.59 : 3,651.02 = 1,392.77 : x
2. Step 2: Convert to fraction form
   2,431.59/3,651.02 = 1,392.77/x
3. Step 3: Cross multiply
   2,431.59x = 3,651.02 × 1,392.77
4. Step 4: Simplify right side
   2,431.59x = 5,085,005.91
5. Step 5: Solve for x
   x = 5,085,005.91/2,431.59
6. Step 6: Final answer
   x = 2,091.23