Finding the Fourth Proportional to 2,633.91, 3,635.45 and 1,926.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633.91 : 3,635.45 = 1,926.78 : x
2. Step 2: Convert to fraction form
   2,633.91/3,635.45 = 1,926.78/x
3. Step 3: Cross multiply
   2,633.91x = 3,635.45 × 1,926.78
4. Step 4: Simplify right side
   2,633.91x = 7,004,712.35
5. Step 5: Solve for x
   x = 7,004,712.35/2,633.91
6. Step 6: Final answer
   x = 2,659.43