Finding the Fourth Proportional to 2,665.74, 3,679.82 and 1,670.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.74 : 3,679.82 = 1,670.79 : x
2. Step 2: Convert to fraction form
   2,665.74/3,679.82 = 1,670.79/x
3. Step 3: Cross multiply
   2,665.74x = 3,679.82 × 1,670.79
4. Step 4: Simplify right side
   2,665.74x = 6,148,206.46
5. Step 5: Solve for x
   x = 6,148,206.46/2,665.74
6. Step 6: Final answer
   x = 2,306.38