Finding the Fourth Proportional to 2,674.86, 3,691.78 and 1,556.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,674.86 : 3,691.78 = 1,556.14 : x
2. Step 2: Convert to fraction form
   2,674.86/3,691.78 = 1,556.14/x
3. Step 3: Cross multiply
   2,674.86x = 3,691.78 × 1,556.14
4. Step 4: Simplify right side
   2,674.86x = 5,744,926.53
5. Step 5: Solve for x
   x = 5,744,926.53/2,674.86
6. Step 6: Final answer
   x = 2,147.75