Finding the Fourth Proportional to 2,303.49, 3,178.82 and 1,308.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,303.49 : 3,178.82 = 1,308.77 : x
2. Step 2: Convert to fraction form
   2,303.49/3,178.82 = 1,308.77/x
3. Step 3: Cross multiply
   2,303.49x = 3,178.82 × 1,308.77
4. Step 4: Simplify right side
   2,303.49x = 4,160,336.19
5. Step 5: Solve for x
   x = 4,160,336.19/2,303.49
6. Step 6: Final answer
   x = 1,806.10