Finding the Fourth Proportional to 4,429.59, 6,642.83 and 1,308.77

Step by Step Solution

1. Step 1: Write the proportion equation
   4,429.59 : 6,642.83 = 1,308.77 : x
2. Step 2: Convert to fraction form
   4,429.59/6,642.83 = 1,308.77/x
3. Step 3: Cross multiply
   4,429.59x = 6,642.83 × 1,308.77
4. Step 4: Simplify right side
   4,429.59x = 8,693,896.86
5. Step 5: Solve for x
   x = 8,693,896.86/4,429.59
6. Step 6: Final answer
   x = 1,962.69