Finding the Fourth Proportional to 2,303.35, 3,178.71 and 1,308.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,303.35 : 3,178.71 = 1,308.60 : x
2. Step 2: Convert to fraction form
   2,303.35/3,178.71 = 1,308.60/x
3. Step 3: Cross multiply
   2,303.35x = 3,178.71 × 1,308.60
4. Step 4: Simplify right side
   2,303.35x = 4,159,637.47
5. Step 5: Solve for x
   x = 4,159,637.47/2,303.35
6. Step 6: Final answer
   x = 1,805.91