Finding the Fourth Proportional to 1,926.59, 2,890.56 and 1,105.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.59 : 2,890.56 = 1,105.55 : x
2. Step 2: Convert to fraction form
   1,926.59/2,890.56 = 1,105.55/x
3. Step 3: Cross multiply
   1,926.59x = 2,890.56 × 1,105.55
4. Step 4: Simplify right side
   1,926.59x = 3,195,658.61
5. Step 5: Solve for x
   x = 3,195,658.61/1,926.59
6. Step 6: Final answer
   x = 1,658.71