Finding the Fourth Proportional to 3,807.58, 5,710.46 and 1,308.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,807.58 : 5,710.46 = 1,308.48 : x
2. Step 2: Convert to fraction form
   3,807.58/5,710.46 = 1,308.48/x
3. Step 3: Cross multiply
   3,807.58x = 5,710.46 × 1,308.48
4. Step 4: Simplify right side
   3,807.58x = 7,472,023.52
5. Step 5: Solve for x
   x = 7,472,023.52/3,807.58
6. Step 6: Final answer
   x = 1,962.41