Finding the Fourth Proportional to 2,670.39, 3,686.72 and 1,926.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,670.39 : 3,686.72 = 1,926.27 : x
2. Step 2: Convert to fraction form
   2,670.39/3,686.72 = 1,926.27/x
3. Step 3: Cross multiply
   2,670.39x = 3,686.72 × 1,926.27
4. Step 4: Simplify right side
   2,670.39x = 7,101,608.50
5. Step 5: Solve for x
   x = 7,101,608.50/2,670.39
6. Step 6: Final answer
   x = 2,659.39