Finding the Fourth Proportional to 2,300.30, 3,431.32 and 2,078.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.30 : 3,431.32 = 2,078.86 : x
2. Step 2: Convert to fraction form
   2,300.30/3,431.32 = 2,078.86/x
3. Step 3: Cross multiply
   2,300.30x = 3,431.32 × 2,078.86
4. Step 4: Simplify right side
   2,300.30x = 7,133,223.50
5. Step 5: Solve for x
   x = 7,133,223.50/2,300.30
6. Step 6: Final answer
   x = 3,101.00