Finding the Fourth Proportional to 3,086.88, 4,259.89 and 1,670.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,086.88 : 4,259.89 = 1,670.58 : x
2. Step 2: Convert to fraction form
   3,086.88/4,259.89 = 1,670.58/x
3. Step 3: Cross multiply
   3,086.88x = 4,259.89 × 1,670.58
4. Step 4: Simplify right side
   3,086.88x = 7,116,457.38
5. Step 5: Solve for x
   x = 7,116,457.38/3,086.88
6. Step 6: Final answer
   x = 2,305.39