Finding the Fourth Proportional to 2,303.86, 3,179.57 and 1,309.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,303.86 : 3,179.57 = 1,309.38 : x
2. Step 2: Convert to fraction form
   2,303.86/3,179.57 = 1,309.38/x
3. Step 3: Cross multiply
   2,303.86x = 3,179.57 × 1,309.38
4. Step 4: Simplify right side
   2,303.86x = 4,163,276.59
5. Step 5: Solve for x
   x = 4,163,276.59/2,303.86
6. Step 6: Final answer
   x = 1,807.09